Website is not opening. Some error is displayed

I don’t know what actually happened.I was using my website as usual then something happened all of a sudden. Now whenever I navigate to that wordpress site it shows an error page.I am new here and seriously doesn’t know what happened.

My website address is http://penpencilreview.ga

I’ll attach ascreenshot of the error page.
I cAN’T EVEN access my admin page

Please help me set this issue. Thanks in advance

Error shows

Fatal error: Uncaught Error: Call to undefined function is_user_logged_in() in /storage/h10/860/1132860/public_html/wp-content/plugins/accesspress-anonymous-post/accesspress-anonymous-post.php:378 Stack trace: #0 /storage/h10/860/1132860/public_html/wp-includes/class-wp-hook.php(298): AP_Class->restrict_media_library(Object(WP_Query)) #1 /storage/h10/860/1132860/public_html/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(’’, Array) #2 /storage/h10/860/1132860/public_html/wp-includes/plugin.php(515): WP_Hook->do_action(Array) #3 /storage/h10/860/1132860/public_html/wp-includes/class-wp-query.php(1681): do_action_ref_array(‘pre_get_posts’, Array) #4 /storage/h10/860/1132860/public_html/wp-includes/class-wp-query.php(3238): WP_Query->get_posts() #5 /storage/h10/860/1132860/public_html/wp-includes/post.php(1689): WP_Query->query(Array) #6 /storage/h10/860/1132860/public_html/wp-content/plugins/ultimate-reviews/Functions/EWD_URP_Version_Update.php(23): get_posts(‘post_type=urp_r…’) #7 /storage/h10/860/1132860/publ in /storage/h10/860/1132860/public_html/wp-content/plugins/accesspress-anonymous-post/accesspress-anonymous-post.php on line 378

Fatal error: Uncaught Error: Call to undefined function is_user_logged_in() in /storage/h10/860/1132860/public_html/wp-content/mu-plugins/hostinger-page-cache.php:234 Stack trace: #0 /storage/h10/860/1132860/public_html/wp-content/mu-plugins/hostinger-page-cache.php(273): Hostinger_Page_Cache->is_cachable() #1 /storage/h10/860/1132860/public_html/wp-includes/class-wp-hook.php(298): Hostinger_Page_Cache->finish(’’) #2 /storage/h10/860/1132860/public_html/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array) #3 /storage/h10/860/1132860/public_html/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #4 /storage/h10/860/1132860/public_html/wp-includes/load.php(677): do_action(‘shutdown’) #5 [internal function]: shutdown_action_hook() #6 {main} thrown in /storage/h10/860/1132860/public_html/wp-content/mu-plugins/hostinger-page-cache.php on line 234

Try to browser to File Manager and visit public_html/wp-content/mu-plugins and rename hostinger-page-cache.php to changeme.php to see if this resolves it.

Rename hostinger-page-cache.php to what exactly.

If I remove that plugin will it gonna work

Remove hostinger-page-cache.php plugin only if you have other cache plugin installed.

Deleted anonymous press plugin and now everything is bach to normal