Blank white page when viewing attachment

Also you have the following php (7.4) error in the admin error:
“Notice: Trying to access array offset on value of type null in /var/www/wordpress/azflooring/public/app/plugins/woo-product-attachment/admin/class-woocommerce-product-attachment-admin.php on line 509”

Hello labcat,

This is site specific issue and coming in many situations so, if you share your system status then, we can check and configure same settings at our side and get back to you.

Go to: WooCommerce > Status.

Troubleshoot using the info below, before opening a ticket at Woo Support.

Select Get System Report and copy/paste it here.

Thanks,

Hi there,

Here is the output, nothing obvious standing out:

### WordPress Environment ###

WordPress address (URL): https://testing.mysite.co.nz/wp
Site address (URL): https://testing.mysite.co.nz
WC Version: 4.4.1
REST API Version: ? 1.0.15
WC Blocks Version: ? 3.1.0
Action Scheduler Version: ? 3.1.6
WC Admin Version: ? 1.4.0
Log Directory Writable: ?
WP Version: ? 5.5 - There is a newer version of WordPress available (5.5.1)
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: –
WP Cron: ?
Language: en_US
External object cache: –

### Server Environment ###

Server Info: Apache/2.4.41 (Ubuntu)
PHP Version: 7.4.3
PHP Post Max Size: 8 MB
PHP Time Limit: 30
PHP Max Input Vars: 1000
cURL Version: 
SUHOSIN Installed: –
MySQL Version: 8.0.21-0ubuntu0.20.04.4
Max Upload Size: 2 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ? Your server does not have the SoapClient class enabled - some gateway plugins which use SOAP may not work as expected.
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 4.4.1
WC Database Prefix: wp_
Total Database Size: 11.55MB
Database Data Size: 8.62MB
Database Index Size: 2.93MB
wp_woocommerce_sessions: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_woocommerce_api_keys: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_woocommerce_attribute_taxonomies: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_woocommerce_downloadable_product_permissions: Data: 0.02MB + Index: 0.06MB + Engine InnoDB
wp_woocommerce_order_items: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_woocommerce_order_itemmeta: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_woocommerce_tax_rates: Data: 0.02MB + Index: 0.06MB + Engine InnoDB
wp_woocommerce_tax_rate_locations: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_woocommerce_shipping_zones: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_woocommerce_shipping_zone_locations: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_woocommerce_shipping_zone_methods: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_woocommerce_payment_tokens: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_woocommerce_payment_tokenmeta: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_woocommerce_log: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_actionscheduler_actions: Data: 0.02MB + Index: 0.11MB + Engine InnoDB
wp_actionscheduler_claims: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_actionscheduler_groups: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_actionscheduler_logs: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_commentmeta: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_comments: Data: 0.02MB + Index: 0.09MB + Engine InnoDB
wp_email_log: Data: 0.22MB + Index: 0.00MB + Engine InnoDB
wp_fbv: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_fbv_attachment_folder: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_frmt_form_entry: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_frmt_form_entry_meta: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_frmt_form_views: Data: 0.02MB + Index: 0.06MB + Engine InnoDB
wp_hustle_entries: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_hustle_entries_meta: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_hustle_modules: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_hustle_modules_meta: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_hustle_tracking: Data: 0.02MB + Index: 0.08MB + Engine InnoDB
wp_links: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_options: Data: 2.08MB + Index: 0.08MB + Engine InnoDB
wp_postmeta: Data: 0.38MB + Index: 0.27MB + Engine InnoDB
wp_posts: Data: 1.45MB + Index: 0.06MB + Engine InnoDB
wp_redirection_404: Data: 0.02MB + Index: 0.06MB + Engine InnoDB
wp_redirection_groups: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_redirection_items: Data: 0.02MB + Index: 0.09MB + Engine InnoDB
wp_redirection_logs: Data: 0.02MB + Index: 0.08MB + Engine InnoDB
wp_term_relationships: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_term_taxonomy: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_termmeta: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_terms: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_usermeta: Data: 0.08MB + Index: 0.03MB + Engine InnoDB
wp_users: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_wc_admin_note_actions: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_wc_admin_notes: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wc_category_lookup: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wc_customer_lookup: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_wc_download_log: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_wc_order_coupon_lookup: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_wc_order_product_lookup: Data: 0.02MB + Index: 0.06MB + Engine InnoDB
wp_wc_order_stats: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_wc_order_tax_lookup: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_wc_product_meta_lookup: Data: 0.02MB + Index: 0.09MB + Engine InnoDB
wp_wc_reserved_stock: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wc_tax_rate_classes: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_wc_webhooks: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_wfblockediplog: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wfblocks7: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_wfconfig: Data: 0.09MB + Index: 0.00MB + Engine InnoDB
wp_wfcrawlers: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wffilechanges: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wffilemods: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wfhits: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_wfhoover: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_wfissues: Data: 0.02MB + Index: 0.06MB + Engine InnoDB
wp_wfknownfilelist: Data: 2.52MB + Index: 0.00MB + Engine InnoDB
wp_wflivetraffichuman: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_wflocs: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wflogins: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_wfls_2fa_secrets: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_wfls_settings: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wfnotifications: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wfpendingissues: Data: 0.02MB + Index: 0.06MB + Engine InnoDB
wp_wfreversecache: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wfsnipcache: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_wfstatus: Data: 0.09MB + Index: 0.03MB + Engine InnoDB
wp_wftrafficrates: Data: 0.02MB + Index: 0.00MB + Engine InnoDB
wp_wpmfs_queue: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_yoast_indexable: Data: 0.17MB + Index: 0.08MB + Engine InnoDB
wp_yoast_indexable_hierarchy: Data: 0.02MB + Index: 0.05MB + Engine InnoDB
wp_yoast_migrations: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_yoast_primary_term: Data: 0.02MB + Index: 0.03MB + Engine InnoDB
wp_yoast_seo_links: Data: 0.02MB + Index: 0.02MB + Engine InnoDB
wp_yoast_seo_meta: Data: 0.02MB + Index: 0.00MB + Engine InnoDB

### Post Type Counts ###

attachment: 141
customize_changeset: 2
forminator_forms: 1
nav_menu_item: 21
page: 11
post: 4
product: 17
product_variation: 86
revision: 91
testimonial: 26
wp_block: 1

### Security ###

Secure connection (HTTPS): ?
Hide errors from visitors: ?

### Active Plugins (15) ###

Easy Testimonials: by Gold Plugins – 3.7
Email Log: by Sudar – 2.4.2
FileBird: by Ninja Team – 4.0.6
Forminator: by WPMU DEV – 1.13.5
Get Subpages List: by Umang Bhanvadia – 1.0.1
Site Kit by Google: by Google – 1.12.0
Mailgun: by Mailgun – 1.7.1
Organic Widget Area Block: by Organic Themes – 1.1.1
Redirection: by John Godley – 4.8
WooCommerce Product Attachment: by theDotstore – 1.5.4 – Installed version not tested with active version of WooCommerce 4.4.1
WooCommerce: by Automattic – 4.4.1 (update to version 4.5.2 is available)
Wordfence Security: by Wordfence – 7.4.11
Hustle: by WPMU DEV – 7.3.0
WP Crontrol: by John Blackbourn & crontributors – 1.8.5
YITH WooCommerce Catalog Mode: by YITH – 2.0.3

### Inactive Plugins (4) ###

All-in-One WP Migration: by ServMask – 7.26
UpdraftPlus - Backup/Restore: by UpdraftPlus.Com
DavidAnderson – 1.16.26

Variation Swatches for WooCommerce: by RadiusTheme – 1.1.55 – Installed version not tested with active version of WooCommerce 4.4.1
Yoast SEO: by Team Yoast – 14.8.1

### Must Use Plugins (3) ###

Bedrock Autoloader: by Roots – 1.0.1
Disallow Indexing: by Roots – 1.0.0
Register Theme Directory: by Roots – 1.0.0

### Settings ###

API Enabled: –
Force SSL: –
Currency: USD ($)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 2
Taxonomies: Product Types: external (external)
grouped (grouped)
simple (simple)
variable (variable)

Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog)
exclude-from-search (exclude-from-search)
featured (featured)
outofstock (outofstock)
rated-1 (rated-1)
rated-2 (rated-2)
rated-3 (rated-3)
rated-4 (rated-4)
rated-5 (rated-5)

Connected to WooCommerce.com: –

### WC Pages ###

Shop base: #12 - /products/
Cart: ? Page ID is set
but the page does not exist

Checkout: ? Page ID is set
but the page does not exist

My account: #15 - /my-account/
Terms and conditions: ? Page not set

### Theme ###

Version: 1.0.0
Author URL: 
Child Theme: ?
Parent Theme Name: Storefront
Parent Theme Version: 2.5.7 – 2.7.0 is available
Parent Theme Author URL: https://woocommerce.com/
WooCommerce Support: ?

### Action Scheduler ###

Complete: 7
Oldest: 2020-09-06 07:29:21 +0000
Newest: 2020-09-15 05:41:06 +0000

Pending: 1
Oldest: 2020-09-15 06:25:31 +0000
Newest: 2020-09-15 06:25:31 +0000

I was actually able to get to work by replacing this line of code:
$wcpoa_file_url_btn = '<a class="wcpoa_attachmentbtn" href="' . get_permalink() . $wcpoa_attachment_url_arg . 'attachment_id=' . $attachment_id . '&download_file=' . $wcpoa_attachments_id . '&wcpoa_attachment_order_id=' . $items_order_id . '" rel="nofollow">' . $wcpoa_att_btn . '</a>';

With this line of code:
$wcpoa_file_url_btn = '<a class="wcpoa_attachmentbtn" href="' . wp_get_attachment_url($attachment_id) .'" target="_blank" rel="nofollow"> ' . $wcpoa_att_btn . '</a>';

Which does exactly what I want. However it would be nice to use your version of the plugin rather than maintaining a forked version.

Hello labcat,

Thanks for providing the report and easy solution.

We will review this new line of code and implement in our next release version if its easy and secure.

Thanks,

Hello labcat,

This thread has been inactive for a while so we’re going to go ahead and mark it Resolved.

Please feel free to open a new thread if any other questions come up and we’d be happy to help. ??

Best Regards,
Hitendra & Customer Care team