Исправить ошибку плагина Wordpress

При включение плагина сайт перестает работать переходит в аварийный режим внутри показывают

этот плагин работает на других сайтах,плагин был создан под заказ

include_files() #2 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/class-custom-programs.php(32): PR_Programs->__construct() #3 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/custom-programs.php(25): PR_Programs::instance() #4 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/custom-programs.php(31): prpg() #5 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-includes/class-wp-hook.php(292): prpg_init('') #6 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-includes/class-wp-hook.php(316): WP_Hook->appl in /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/models/class-company.php on line 2" data-timestamp="1629316015316" data-userid="450104373027627008">[17-Aug-2021 08:20:32 UTC] PHP Warning:  include_once(/home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/vendor/mustache.php-master/src/Mustache/Autoloader.php): failed to open stream: No such file or directory in /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/class-custom-programs.php on line 66
[17-Aug-2021 08:20:32 UTC] PHP Warning:  include_once(): Failed opening '/home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/vendor/mustache.php-master/src/Mustache/Autoloader.php' for inclusion (include_path='.:/opt/alt/php74/usr/share/pear') in /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/class-custom-programs.php on line 66
[17-Aug-2021 08:20:32 UTC] PHP Fatal error:  Uncaught Error: Class 'PRPG_Postdata' not found in /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/models/class-company.php:2
Stack trace:
#0 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/class-custom-programs.php(75): include_once()
#1 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/class-custom-programs.php(40): PR_Programs->include_files()
#2 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/class-custom-programs.php(32): PR_Programs->__construct()
#3 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/custom-programs.php(25): PR_Programs::instance()
#4 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/custom-programs.php(31): prpg()
#5 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-includes/class-wp-hook.php(292): prpg_init('')
#6 /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-includes/class-wp-hook.php(316): WP_Hook->appl in /home/ACCOUNTHERE/public_html/WEBSITEFOLDER/wp-content/plugins/custom-plugin-here/includes/models/class-company.php on line 2