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Hi this is the situation:
WordPress 6.1.1, UM updated to 2.5.2
Console log shows internal server error (500) with /wp-admin/admin-ajax.php.
There are problems with some wp backend functions, for example it is impossible to delete a plugin and the error comes out in the console. Or some addons like “Um groups” don’t work well. I tried disabling all plugins and found that UM is responsible. I tried uninstalling and reinstalling UM but it didn’t help. I am attaching the debug error log:
[17-Dec-2022 17:08:59 UTC] PHP Fatal error: Uncaught Error: Call to undefined function wp_get_current_user() in /home2/qmetromz/public_html/wp-includes/capabilities.php:873
Stack trace:
0 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/admin/core/class-admin-upgrade.php(70): current_user_can('manage_options')
1 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/admin/core/class-admin-upgrade.php(53): um\admin\core\Admin_Upgrade->__construct()
2 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(810): um\admin\core\Admin_Upgrade::instance()
3 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(551): UM->admin_upgrade()
4 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(204): UM->includes()
5 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(88): UM->_um_construct()
6 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(1526): in /home2/qmetromz/public_html/wp-includes/capabilities.php on line 873
[17-Dec-2022 17:09:12 UTC] PHP Fatal error: Uncaught Error: Call to undefined function wp_get_current_user() in /home2/qmetromz/public_html/wp-includes/capabilities.php:873
Stack trace:
0 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/admin/core/class-admin-upgrade.php(70): current_user_can('manage_options')
1 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/admin/core/class-admin-upgrade.php(53): um\admin\core\Admin_Upgrade->__construct()
2 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(810): um\admin\core\Admin_Upgrade::instance()
3 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(551): UM->admin_upgrade()
4 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(204): UM->includes()
5 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(88): UM->_um_construct()
6 /home2/qmetromz/public_html/wp-content/plugins/ultimate-member/includes/class-init.php(1526): in /home2/qmetromz/public_html/wp-includes/capabilities.php on line 873