Product adding failed. Woocommerce error. HTTP Error 500 Internal Server Error

Happens when trying to import products into Woocommerce from theprintful.com

Any idea how to fix this? =) I hope..

Thank you.
Jeremiah

### WordPress Environment ###

Home URL: https://lazulu.com
Site URL: https://lazulu.com
WC Version: 2.7.0
Log Directory Writable: ?
WP Version: 4.7.1
WP Multisite: –
WP Memory Limit: 1 GB
WP Debug Mode: ?
WP Cron: ?
Language: en_US

### Server Environment ###

Server Info: nginx/1.10.0
PHP Version: 7.0.14-2+deb.sury.org~xenial+1
PHP Post Max Size: 100 MB
PHP Time Limit: 300
PHP Max Input Vars: 1000
cURL Version: 7.47.0
OpenSSL/1.0.2g

SUHOSIN Installed: –
Max Upload Size: 100 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 2.7.0
WC Database Prefix: wp_
woocommerce_sessions: ?
woocommerce_api_keys: ?
woocommerce_attribute_taxonomies: ?
woocommerce_downloadable_product_permissions: ?
woocommerce_order_items: ?
woocommerce_order_itemmeta: ?
woocommerce_tax_rates: ?
woocommerce_tax_rate_locations: ?
woocommerce_shipping_zones: ?
woocommerce_shipping_zone_locations: ?
woocommerce_shipping_zone_methods: ?
woocommerce_payment_tokens: ?
woocommerce_payment_tokenmeta: ?

### Security ###

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

### Active Plugins (6) ###

Cornerstone: by Themeco – 1.3.3
Jetpack by WordPress.com: by Automattic – 4.4.2
Nginx Helper: by rtCamp – 1.9.9
Redis Object Cache: by Till Krüss – 1.3.5
WooCommerce PayPal Powered by Braintree Gateway: by WooThemes – 1.2.6
WooCommerce: by WooThemes – 2.7.0-beta-1

### 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)

### WC Pages ###

Shop base: #6 - /
Cart: #7 - /cart/
Checkout: #8 - /checkout/
My account: #9 - /my-account/

### Theme ###

Name: X – Child Theme
Version: 1.0.0
Author URL: https://theme.co/
Child Theme: ?
Parent Theme Name: X
Parent Theme Version: 4.6.4
Parent Theme Author URL: https://theme.co/
WooCommerce Support: ?

### Templates ###

Archive Template: Your theme has a woocommerce.php file
you will not be able to override the woocommerce/archive-product.php custom template since woocommerce.php has priority over archive-product.php. This is intended to prevent display issues.

Overrides: x/woocommerce/cart/cart-empty.php
x/woocommerce/cart/cross-sells.php
x/woocommerce/loop/loop-end.php
x/woocommerce/loop/loop-start.php
x/woocommerce/loop/pagination.php
x/woocommerce/notices/error.php
x/woocommerce/notices/notice.php
x/woocommerce/notices/success.php
x/woocommerce/single-product/product-image.php
x/woocommerce/single-product/product-thumbnails.php
x/woocommerce/single-product/related.php
x/woocommerce/single-product/tabs/tabs.php
x/woocommerce/single-product/up-sells.php
x/woocommerce/single-product-reviews.php

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[14-Jan-2017 10:08:42 UTC] PHP Notice: Trying to get property of non-object in /var/www/lazulu.com/htdocs/wp-content/plugins/jetpack/modules/custom-css/migrate-to-core.php on line 170
[14-Jan-2017 10:08:42 UTC] PHP Notice: Trying to get property of non-object in /var/www/lazulu.com/htdocs/wp-content/plugins/jetpack/modules/custom-css/migrate-to-core.php on line 29
[14-Jan-2017 10:08:42 UTC] PHP Notice: Trying to get property of non-object in /var/www/lazulu.com/htdocs/wp-content/plugins/jetpack/modules/custom-css/migrate-to-core.php on line 182
[14-Jan-2017 10:09:09 UTC] PHP Notice: WC_Product::get_rating_html is deprecated since version 2.7! Use wc_get_rating_html instead. in /var/www/lazulu.com/htdocs/wp-includes/functions.php on line 3828
[14-Jan-2017 10:10:03 UTC] PHP Notice: Trying to get property of non-object in /var/www/lazulu.com/htdocs/wp-content/plugins/jetpack/modules/custom-css/migrate-to-core.php on line 170
[14-Jan-2017 10:10:03 UTC] PHP Notice: Trying to get property of non-object in /var/www/lazulu.com/htdocs/wp-content/plugins/jetpack/modules/custom-css/migrate-to-core.php on line 29
[14-Jan-2017 10:10:03 UTC] PHP Notice: Trying to get property of non-object in /var/www/lazulu.com/htdocs/wp-content/plugins/jetpack/modules/custom-css/migrate-to-core.php on line 182
[14-Jan-2017 10:10:21 UTC] PHP Fatal error: Uncaught Error: Call to undefined method WC_Product_Variable::create() in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php:267
Stack trace:
#0 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(372): WC_API_Products->create_product(Array)
#1 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(223): WC_API_Server->dispatch()
#2 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(269): WC_API_Server->serve_request()
#3 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(101): WC_Legacy_API->handle_v2_rest_api_request()
#4 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(298): WC_Legacy_API->handle_rest_api_requests(Object(WP))
#5 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
#6 /var/www/lazulu.com/htdocs/wp-inclu in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php on line 267
[14-Jan-2017 10:16:47 UTC] PHP Fatal error: Uncaught Error: Call to undefined method WC_Product_Variable::create() in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php:267
Stack trace:
#0 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(372): WC_API_Products->create_product(Array)
#1 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(223): WC_API_Server->dispatch()
#2 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(269): WC_API_Server->serve_request()
#3 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(101): WC_Legacy_API->handle_v2_rest_api_request()
#4 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(298): WC_Legacy_API->handle_rest_api_requests(Object(WP))
#5 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
#6 /var/www/lazulu.com/htdocs/wp-inclu in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php on line 267
[14-Jan-2017 10:16:57 UTC] PHP Fatal error: Uncaught Error: Call to undefined method WC_Product_Variable::create() in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php:267
Stack trace:
#0 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(372): WC_API_Products->create_product(Array)
#1 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(223): WC_API_Server->dispatch()
#2 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(269): WC_API_Server->serve_request()
#3 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(101): WC_Legacy_API->handle_v2_rest_api_request()
#4 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(298): WC_Legacy_API->handle_rest_api_requests(Object(WP))
#5 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
#6 /var/www/lazulu.com/htdocs/wp-inclu in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php on line 267
[14-Jan-2017 10:40:18 UTC] PHP Fatal error: Uncaught Error: Call to undefined method WC_Product_Variable::create() in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php:267
Stack trace:
#0 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(372): WC_API_Products->create_product(Array)
#1 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(223): WC_API_Server->dispatch()
#2 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(269): WC_API_Server->serve_request()
#3 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(101): WC_Legacy_API->handle_v2_rest_api_request()
#4 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(298): WC_Legacy_API->handle_rest_api_requests(Object(WP))
#5 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
#6 /var/www/lazulu.com/htdocs/wp-inclu in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php on line 267
[14-Jan-2017 10:40:30 UTC] PHP Fatal error: Uncaught Error: Call to undefined method WC_Product_Variable::create() in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php:267
Stack trace:
#0 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(372): WC_API_Products->create_product(Array)
#1 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(223): WC_API_Server->dispatch()
#2 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(269): WC_API_Server->serve_request()
#3 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(101): WC_Legacy_API->handle_v2_rest_api_request()
#4 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(298): WC_Legacy_API->handle_rest_api_requests(Object(WP))
#5 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
#6 /var/www/lazulu.com/htdocs/wp-inclu in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php on line 267

—————————————————————————————————————————————————————————–
0 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(372): WC_API_Products->create_product(Array)
1 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-server.php(223): WC_API_Server->dispatch()
2 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(269): WC_API_Server->serve_request()
3 /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/class-wc-legacy-api.php(101): WC_Legacy_API->handle_v2_rest_api_request()
4 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(298): WC_Legacy_API->handle_rest_api_requests(Object(WP))
5 /var/www/lazulu.com/htdocs/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array)
6″ while reading response header from upstream, client: 52.52.37.39, server: lazulu.com, request: “POST /wc-api/v2/products?consumer_key=ck_acd0997ae80faqwed6bc76e8b2e9c1c64004e3d&consumer_secret=cs_d1ce4de259719ddfbcf49caechjbb9e444ad65190&_rand=2262062 HTTP/1.1”, upstream: “fastcgi://127.0.0.1:9070”, host: “lazulu.com”

2017/01/14 06:52:05 [error] 3169#3169: *24598 FastCGI sent in stderr: “PHP message: PHP Fatal error: Uncaught Error: Call to undefined method WC_Product_Variable::create() in /var/www/lazulu.com/htdocs/wp-content/plugins/woocommerce/includes/api/legacy/v2/class-wc-api-products.php:267
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