the plugin has critical errors on my website

Hello I bought the plugin but it does not work for me since it is presenting critical errors on the web

this is the message

Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site and alerts you via this automated email.

In this case, WordPress has detected an error with one of your plugins, WooCommerce Photo Reviews Premium.

First, visit your website (https://greykastore.com/) and check if there are any visible problems. Next, visit the page where the error was detected (https://greykastore.com/wp-admin/post.php?post=1738&action=elementor) and check if there are any visible problems.

Please contact your property to help you further investigate this issue.

If your site seems broken and you cannot access your desktop normally, WordPress now has a special “recovery mode”. This allows you to safely access your desktop and investigate further.

https://greykastore.com/ge_grekpj/?action=enter_recovery_mode&rm_token=9MLbTtv5vbe6rLj0cVNQi3&rm_key=nx8VTPGWLNn8nB93XvnSNr

To keep your site safe, this link will expire in 1 day. However, don’t worry about this: you will receive a new link by email if the error occurs again after it expires.

When looking for help with this problem, you may be asked for the following information:
WordPress version 5.6.2
Current topic: Kava Child (version 1.0.0)
Current plugin: WooCommerce Photo Reviews Premium (version 1.1.4.9)
PHP version 7.4.15

Details of the error
==================
An error of type E_ERROR occurred on line 3029 of the file /home/paygrekc/greykastore.com/wp-content/plugins/woocommerce-photo-reviews/frontend/frontend.php. Error message: Uncaught Error: Call to a member function get_title () on null in /home/paygrekc/greykastore.com/wp-content/plugins/woocommerce-photo-reviews/frontend/frontend.php:3029
Stack trace:
# 0 /home/paygrekc/greykastore.com/wp-includes/class-wp-hook.php(287): VI_WOOCOMMERCE_PHOTO_REVIEWS_Frontend_Frontend-> photo_reviews (Array)
# 1 /home/paygrekc/greykastore.com/wp-includes/plugin.php(212): WP_Hook-> apply_filters (Array, Array)
# 2 /home/paygrekc/greykastore.com/wp-includes/comment-template.php(2100): apply_filters (‘wp_list_comment …’, Array)
# 3 /home/paygrekc/greykastore.com/wp-content/themes/kava/comments.php(45): wp_list_comments (Array)
# 4 /home/paygrekc/greykastore.com/wp-includes/comment-template.php(1556): require (‘/ home / paygrekc / …’)
# 5 /home/paygrekc/greykastore.com/wp-content/plugins/elementor-pro/modules/theme-elements/widgets/post-comments.php(114): comments_template ()
# 6 /home/paygrekc/greykastore.com/wp-content/plugins/elementor/includes/base/controls-stack.php(1892): ElementorPro \ Modules \ ThemeElements \ Widg