Plugin does nor work

I get the following message and the plugin actually does not work

WordPress version 5.6.1
Current theme: Chromium (version 1.3.11)
Current plugin: Additional Variation Images Gallery for WooCommerce (version 1.2.1)
PHP version 7.4.15

Error Details
=============
An error of type E_ERROR was caused in line 13 of the file /customers/a/a/1/adventure-trucks.com/httpd.www/wp-content/plugins/woo-variation-gallery/includes/functions.php. Error message: Uncaught Error: Call to a member function get() on null in /customers/a/a/1/adventure-trucks.com/httpd.www/wp-content/plugins/woo-variation-gallery/includes/functions.php:13
Stack trace:
#0 /customers/a/a/1/adventure-trucks.com/httpd.www/wp-includes/class-wp-hook.php(287): wvg_cache_variation_ajax(Array)
#1 /customers/a/a/1/adventure-trucks.com/httpd.www/wp-includes/plugin.php(212): WP_Hook->apply_filters(Array, Array)
#2 /customers/a/a/1/adventure-trucks.com/httpd.www/wp-includes/functions.php(1465): apply_filters(‘nocache_headers’, Array)
#3 /customers/a/a/1/adventure-trucks.com/httpd.www/wp-includes/functions.php(1487): wp_get_nocache_headers()
#4 /customers/a/a/1/adventure-trucks.com/httpd.www/wp-content/plugins/jetpack/modules/protect/blocked-login-page.php(354): nocache_headers()
#5 /customers/a/a/1/adventure-trucks.com/httpd.www/wp-content/plugins/jetpack/modules/protect/blocked-login-page.php(306): Jetpack_Protect_Blocked_Login_Page->display_page(‘Jetpack has loc…’, ‘Your IP a…’, NULL, true)