Hi!
WordPress found a bug with one of the plugins – Codeless Framework:

To solve the problem you will need the following information:
WordPress version 6.1.1
Current theme: Specular Child (version 1.0.0)
Problematic plugin: Codeless Framework (version 1.0.6)
PHP version 8.1.11

Error details
===================================
An error of the E_ERROR type occurred on line 24 of /home/c/cx16560/verkholantsev/public_html/wp-content/plugins/codeless-framework/codeless-framework.php. Error message: Uncaught Error: Call to undefined function is_plugin_active() in /home/cx16560/verkholantsev/public_html/wp-content/plugins/codeless-framework/codeless-framework.php:24
Stack trace:
#0 /home/c/cx16560/verkholantsev/public_html/wp-settings.php(447): include_once()
#1 /home/c/cx16560/verkholantsev/public_html/wp-config.php(96): require_once(‘/home/c/cx16560…’)
#2 /home/c/cx16560/verkholantsev/public_html/wp-load.php(50): require_once(‘/home/c/cx16560…’)
#3 /home/c/cx16560/verkholantsev/public_html/wp-admin/admin.php(34): require_once(‘/home/c/cx16560…’)
#4 /home/c/cx16560/verkholantsev/public_html/wp-admin/plugins.php(10): require_once(‘/home/c/c/cx16560…’)
#5 {main}
thrown