Internal Server Error on Checkout Page

Can you provide a list of the other plugins installed? It’s possibly a plugin conflict and I can look into it.

I deactivated all plugins and this one was causing the issue. I’m not sure what the other plugins would have to do with it if they were inactive when this one was causing issues. I have 51 plugins installed. A list would take ages.

Here. This is the best I can do.

(mt) Mail
Activate | Edit | Delete
Access your Media Temple web mail
Version 1.1 | By Media Temple, Inc. | Visit plugin site
Select (mt) MediaTemple System Plugin
(mt) MediaTemple System Plugin
Deactivate | Edit
System Plugin
Version 0.4 | By Media Temple | Visit plugin site
Select Affiliates
Affiliates
Activate | Edit | Delete
The Affiliates plugin provides the right tools to maintain a partner referral program.
Version 2.13.2 | By itthinx | View details
Select Affiliates WooCommerce Integration Light
Affiliates WooCommerce Integration Light
Activate | Edit | Delete
Integrates Affiliates with WooCommerce
Version 1.2.0 | By itthinx | View details
Select Akismet
Akismet
Settings | Deactivate | Edit
Used by millions, Akismet is quite possibly the best way in the world to protect your blog from spam. It keeps your site protected even while you sleep. To get started: 1) Click the “Activate” link to the left of this description, 2) Sign up for an Akismet plan to get an API key, and 3) Go to your Akismet configuration page, and save your API key.
Version 3.1.5 | By Automattic | View details
Select Booster for WooCommerce
Booster for WooCommerce
Settings | Docs | Unlock all | Deactivate | Edit
Supercharge your WooCommerce site with these awesome powerful features.
Version 2.3.8 | By Algoritmika Ltd | View details
Select Captain Up
Captain Up
Activate | Edit | Delete
Add Game Mechanics to your site and increase your engagement and retention. 2 minutes install: Simply add your free Captain Up API Key and you are good to go. The plugin also adds widgets you can use to show leaderboards and activities within your site.
Version 2.2.0 | By Captain Up Team | View details
Select Click To Tweet
Click To Tweet
Activate | Edit | Delete
Add click to tweet boxes to your WordPress posts, easily.
Version 1.3 | By Todaymade | View details
Select Custom Registration Link
Custom Registration Link
Activate | Edit | Delete
Let you customize the registration link.
Version 1.0.0 | By Hautclocq Gabriel | View details
Select DH Woocommerce Product Labels
DH Woocommerce Product Labels
Deactivate | Edit
Add visually-appealing labels to any product images.
Version 2.0.1 | By DH Zoanku | Visit plugin site
Select Dynamic Widgets
Dynamic Widgets
Settings | Deactivate | Edit
Dynamic Widgets gives you full control on which pages your widgets will appear. It lets you dynamicly show or hide widgets on WordPress pages.
Version 1.5.11 | By Qurl | View details
Select EWWW Image Optimizer
EWWW Image Optimizer
Settings | Deactivate | Edit
Reduce file sizes for images within WordPress including NextGEN Gallery and GRAND FlAGallery. Uses jpegtran, optipng/pngout, and gifsicle.
Version 2.5.4 | By Shane Bishop | View details
Select Exclude Pages from Navigation
Exclude Pages from Navigation
Activate | Edit | Delete
Provides a checkbox on the editing page which you can check to exclude pages from the primary navigation. IMPORTANT NOTE: This will remove the pages from any “consumer” side page listings, which may not be limited to your page navigation listings.
Version 1.92 | By Simon Wheatley | View details
Select GC Message Bar
GC Message Bar
Activate | Edit | Delete
GC Message Bar is an easy to use plugin that allows you to place a sticky message and a Call To Action button to the top or bottom of your website
Version 2.3.8 | By GetConversion | View details
Select Google Analytics by Yoast
Google Analytics by Yoast
Activate | Edit | Delete
This plugin makes it simple to add Google Analytics to your WordPress site, adding lots of features, e.g. error page, search result and automatic outgoing links and download tracking.
Version 5.4.6 | By Team Yoast | View details
Select Google Analytics Dashboard
Google Analytics Dashboard
Deactivate | Edit
Google Analytics graph integration.
Version 2.1.1 | By Team Yoast & Carson McDonald | View details
Select Jetpack by WordPress.com
Jetpack by WordPress.com
Jetpack | Settings | Support | Deactivate | Edit
Bring the power of the WordPress.com cloud to your self-hosted WordPress. Jetpack enables you to connect your blog to a WordPress.com account to use the powerful features normally only available to WordPress.com users.
Version 3.8.0 | By Automattic | View details
Select MailChimp
MailChimp
Settings | Deactivate | Edit
The MailChimp plugin allows you to quickly and easily add a signup form for your MailChimp list.
Version 1.4.2 | By MailChimp and Crowd Favorite | Visit plugin site
Select My Subscribe
My Subscribe
Activate | Edit | Delete
Secondary subscription module allowing users to subscribe to my posts to receive a notification via email.
Version 1.0 | By Kassondra Joy Corbett Coxson | Visit plugin site
Select One-Click Child Theme
One-Click Child Theme
Activate | Edit | Delete
Easily child theme any theme from wp-admin wp-admin without going into shell or using FTP.
Version 1.6 | By tychay | View details
Select P3 (Plugin Performance Profiler)
P3 (Plugin Performance Profiler)
Activate | Edit | Delete
See which plugins are slowing down your site. Create a profile of your WordPress site’s plugins’ performance by measuring their impact on your site’s load time.
Version 1.5.3.9 | By GoDaddy.com | View details
Select PayPal for WooCommerce
PayPal for WooCommerce
Activate | Edit | Delete
Easily enable PayPal Express Checkout, Website Payments Pro 3.0, Payments Pro 2.0 (PayFlow), and PayPal Plus (Germany). Each option is available separately so you can enable them individually.
Version 1.1.7.5 | By Angell EYE | View details
Select Pinterest Pin It Button For Images
Pinterest Pin It Button For Images
Deactivate | Edit
Displays a Pin It button directly over your images.
Version 1.1.0 | By Canha | View details
Select Quick Page/Post Redirect Plugin
Quick Page/Post Redirect Plugin
Deactivate | Edit | Settings
Redirect Pages, Posts or Custom Post Types to another location quickly (for internal or external URLs). Includes individual post/page options, redirects for Custom Post types, non-existant 301 Quick Redirects (helpful for sites converted to WordPress), New Window functionality, and rel=nofollow functionality.
Version 5.1.5 | By Don Fischer | View details | Quick Redirects | FAQ | Donate
Select Shortcode Widget
Shortcode Widget
Activate | Edit | Delete
Adds a text-like widget that allows you to write shortcode in it. (Just whats missing in the default text widget)
Version 1.2 | By Gagan Deep Singh | View details
Select Simple Social Icons
Simple Social Icons
Deactivate | Edit
A simple, CSS and icon font driven social icons widget.
Version 1.0.13 | By Nathan Rice | View details
Select Site Stager
Site Stager
Deactivate | Edit
Wordpress staging and development made easy. Bundled with the Media Temple Premium WordPress product to enable developers to stage/sync WordPress sites.
Version 0.2 | By Media Temple | Visit plugin site
Select WooCommerce
WooCommerce
Settings | Deactivate | Edit
An e-commerce toolkit that helps you sell anything. Beautifully.
Version 2.4.10 | By WooThemes | View details | Docs | API Docs | Premium Support
Select WooCommerce – Gift Cards
WooCommerce – Gift Cards
Activate | Edit | Delete
WooCommerce – Gift Cards allows you to offer gift cards to your customer and allow them to place orders using them.
Version 2.1.1 | By WP Ronin | View details
Select WooCommerce Abandon Cart Lite Plugin
WooCommerce Abandon Cart Lite Plugin
Deactivate | Edit
This plugin captures abandoned carts by logged-in users & emails them about it. Click here to get the PRO Version.
Version 2.2 | By Tyche Softwares | View details
Select Woocommerce Badges Managment – by Gema75
Woocommerce Badges Managment – by Gema75
Activate | Edit | Delete
A simple plugin woocommerce product badges.
Version 3.7 | By Gema75 | Visit plugin site
Select WooCommerce Beans
WooCommerce Beans
Settings | Deactivate | Edit
Beans extension for woocommerce. Advanced reward program for woocommerce that helps you engage your customers.
Version 0.10.2 | By Beans | Visit plugin site
Select WooCommerce Bulk Discount
WooCommerce Bulk Discount
Activate | Edit | Delete
Apply fine-grained bulk discounts to items in the shopping cart.
Version 2.3.1 | By Rene Puchinger | View details
Select WooCommerce Chained Products
WooCommerce Chained Products
About | Deactivate | Edit
Easily create product bundles and combo packs and boost your sales.
Version 2.3.6 | By Store Apps | Visit plugin site
Select WooCommerce Checkout Manager
WooCommerce Checkout Manager
Activate | Edit | Delete
Manages WooCommerce Checkout fields
Version 3.6.8 | By Ephrain Marchan | View details
Select Woocommerce CSV Import
Woocommerce CSV Import
Activate | Edit | Delete
Import CSV files in Woocommerce
Version 3.0.5 | By Allaerd Mensonides | View details
Select WooCommerce Dynamic Pricing
WooCommerce Dynamic Pricing
Deactivate | Edit
WooCommerce Dynamic Pricing lets you configure dynamic pricing rules for products, categories and members. For WooCommerce 1.4+
Version 2.10.5 | By Lucas Stark | Visit plugin site
Select WooCommerce MailChimp
WooCommerce MailChimp
Activate | Edit | Delete
WooCommerce MailChimp provides simple MailChimp integration for WooCommerce.
Version 1.3.6 | By Adam Anderly | View details
Select WooCommerce Product Archive Customiser
WooCommerce Product Archive Customiser
Activate | Edit | Delete
Allows you to customise WooCommerce product archives. Change the number of product columns and the number of products displayed per page. Toggle the display of core elements and enable some that are not included in WooCommerce core such as stock levels and product categories.
Version 0.5.0 | By jameskoster | View details
Select WooCommerce Product Reviews Pro
WooCommerce Product Reviews Pro
Configure | Docs | Support | Deactivate | Edit
Extend WooCommerce product reviews to add video, photo, comment, and question contribution types, as well as review filtering, voting, and flagging.
Version 1.3.1 | By WooThemes / SkyVerge | View details
Select Woocommerce Products Slider
Woocommerce Products Slider
Activate | Edit | Delete
Fully responsive and mobile ready Carousel Slider for your woo-commerce product. unlimited slider anywhere via short-codes and easy admin setting.
Version 1.10 | By paratheme | View details
Select WooThemes Helper
WooThemes Helper
Deactivate | Edit
Hi there. I’m here to help you manage licenses for your WooThemes products, as well as help out when you need a guiding hand.
Version 1.5.9 | By WooThemes | Visit plugin site
Select WooView
WooView
Activate | Edit | Delete
WooView enables you to access your WooCommerce store on the go using the WooView iPhone App
Version 1.2.5 | By Joe Rucci | View details
Select WordPress PopUp
WordPress PopUp
Activate | Edit | Delete
Allows you to display a fancy PopUp to visitors sitewide or per blog. A *very* effective way of advertising a mailing list, special offer or running a plain old ad.
Version 4.7.1.1 | By WPMU DEV | View details
Select WP Category Permalink
WP Category Permalink
Activate | Edit | Delete
Allows manual selection of a ‘main’ category for each post for better permalinks and SEO. Pro version WILL add support for custom taxonomies.
Version 2.2.7 | By Jordy Meow | View details
Select WP Crontrol
WP Crontrol
Deactivate | Edit | Cron Events | Cron Schedules
WP Crontrol lets you view and control what’s happening in the WP-Cron system.
Version 1.3 | By John Blackbourn & Edward Dale | View details
Select WP Smush
WP Smush
Activate | Edit | Delete
Reduce image file sizes, improve performance and boost your SEO using the free WPMU DEV WordPress Smush API.
Version 2.1.2 | By WPMU DEV | View details
Select WP-Optimize
WP-Optimize
Optimizer | Settings | Deactivate | Edit
This plugin helps you to keep your database clean by removing post revisions and spams in a blaze. Additionally it allows you to run optimize command on your WordPress core tables (use with caution).
Version 1.8.9.10 | By Ruhani Rabin | View details
Select WP101 Video Tutorials
WP101 Video Tutorials
Activate | Edit | Delete
WordPress video tutorials, delivered right in your dashboard.
Version 0.3 | By WP101Plugin.com
Select YITH WooCommerce Wishlist
YITH WooCommerce Wishlist
Deactivate | Edit | Settings | Premium Version
YITH WooCommerce Wishlist allows you to add Wishlist functionality to your e-commerce.
Version 2.0.12 | By Yithemes | View details | Plugin Documentation
Select Yoast SEO
Yoast SEO
FAQ | Premium Support | Settings | Deactivate | Edit
The first true all-in-one SEO solution for WordPress, including on-page content analysis, XML sitemaps and much more.
Version 3.0.4 | By Team Yoast | View details

Ok. So you only get the error when this plugin is the only one activated?

Can you send me your WordPress and WooCommerce version? Then, I can try to reproduce with those versions on my dev environment and get it resolved.

Thanks!

Thanks for the plugin list. Can you also send your WordPress version?

WordPress 4.3.1

Do you really only check in every other week? Don’t worry about troubleshooting this. I found a better plugin. Thanks anyway.

@kjcc,

This is a free plugin, so I check in as my time permits. Many plugin authors do not offer support at all for free plugins and require payment for support as it can take up quite a lot of time troubleshooting issues with several thousand installs and the nuances of each setup. I’m glad you found a plugin that is working for your needs and I’m sorry I couldn’t get to this in time for you to benefit from it.