Hi there,
having looked into other thread and not finding the correct solution, here we go.
After installing Metabox AIO and activating it, I get a white screen of death with a critical error message from wordpress. After going to the new recovery mode I can extract the following error message regarding Metabox AIO:
An error of type E_ERROR was caused in line 45 of the file /usr/www/users/wushu/dev/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-template/src/Parser.php. Error message: Uncaught TypeError: Return value of MBTemplate\Parser::parse_files() must be of the type array, null returned in /usr/www/users/wushu/dev/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-template/src/Parser.php:45 Stack trace: #0 /usr/www/users/wushu/dev/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-template/src/Parser.php(11): MBTemplate\Parser->parse_files() #1 /usr/www/users/wushu/dev/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-template/src/Register.php(45): MBTemplate\Parser->parse() #2 /usr/www/users/wushu/dev/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-template/src/Register.php(17): MBTemplate\Register->parse() #3 /usr/www/users/wushu/dev/wp-includes/class-wp-hook.php(308): MBTemplate\Register->register_meta_boxes(Array) #4 /usr/www/users/wushu/dev/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array) #5 /usr/www/users/wushu/dev/wp-content/plugins/meta-box/inc/core.php(25): apply_filters('rwmb_meta_boxes', Array) #6 /usr/www/users/wushu/dev/wp-inc
Wordrpess Version 6.1.1
PHP version 7.3.33
active Plugins:
Automatic.css (2.2.0.2) by Kevin Geary, Matteo Greco
BricksExtras (1.1.9) by BricksExtras
Fluent Forms (4.3.22) by Contact Form - WPManageNinja LLC
Fluent Forms Pro Add On Pack (4.3.21) by Fluent Forms
Frames (1.1.0.1) by Kevin Geary, Matteo Greco