Plugin breakdown after latest update

I received quite some error messages after the latest update. Any idea where this is coming from?

Warning: include_once(/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php): failed to open stream: No such file or directory in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: include_once(): Failed opening ‘/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php’ for inclusion (include_path=’.:/usr/lib/php7.4′) in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WPFM_CMB2_Hookup’ not found in /homepages/17/d146613227/htdocs/wordpress/wp-includes/class-wp-hook.php on line 292

Warning: include_once(/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php): failed to open stream: No such file or directory in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: include_once(): Failed opening ‘/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php’ for inclusion (include_path=’.:/usr/lib/php7.4′) in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WPFM_CMB2_Hookup’ not found in /homepages/17/d146613227/htdocs/wordpress/wp-includes/class-wp-hook.php on line 292

Warning: include_once(/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php): failed to open stream: No such file or directory in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: include_once(): Failed opening ‘/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php’ for inclusion (include_path=’.:/usr/lib/php7.4′) in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WPFM_CMB2_Hookup’ not found in /homepages/17/d146613227/htdocs/wordpress/wp-includes/class-wp-hook.php on line 292

Warning: include_once(/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php): failed to open stream: No such file or directory in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: include_once(): Failed opening ‘/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php’ for inclusion (include_path=’.:/usr/lib/php7.4′) in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WPFM_CMB2_Hookup’ not found in /homepages/17/d146613227/htdocs/wordpress/wp-includes/class-wp-hook.php on line 292

Warning: include_once(/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php): failed to open stream: No such file or directory in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: include_once(): Failed opening ‘/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/WPFM_CMB2_Hookup.php’ for inclusion (include_path=’.:/usr/lib/php7.4′) in /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php on line 44

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WPFM_CMB2_Hookup’ not found in /homepages/17/d146613227/htdocs/wordpress/wp-includes/class-wp-hook.php on line 292

Warning: Cannot modify header information – headers already sent by (output started at

/homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php:44) in /homepages/17/d146613227/htdocs/wordpress/wp-includes/functions.php on line 6362

Warning: Cannot modify header information – headers already sent by (output started at /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php:44) in /homepages/17/d146613227/htdocs/wordpress/wp-admin/includes/misc.php on line 1310

Warning: Cannot modify header information – headers already sent by (output started at /homepages/17/d146613227/htdocs/wordpress/wp-content/plugins/best-woocommerce-feed/includes/library/cmb2/includes/helper-functions.php:44) in /homepages/17/d146613227/htdocs/wordpress/wp-admin/admin-header.php on line 9