After automatically updating my WordPress installation, my website shows this error instead of loading.

Deprecated: File wp-db.php is deprecated since version 6.1.0! Use wp-includes/class-wpdb.php instead. in /home/vol13_4/epizy.com/epiz_30367402/htdocs/wp-includes/functions.php on line 5595 Warning: require(/home/vol13_4/epizy.com/epiz_30367402/htdocs/wp-includes/class-wp-dependencies.php): failed to open stream: No such file or directory in /home/vol13_4/epizy.com/epiz_30367402/htdocs/wp-includes/script-loader.php on line 23 Fatal error: require(): Failed opening required '/home/vol13_4/epizy.com/epiz_30367402/htdocs/wp-includes/class-wp-dependencies.php' (include_path='.:/usr/share/pear/') in /home/vol13_4/epizy.com/epiz_30367402/htdocs/wp-includes/script-loader.php on line 23 Notice: Function is_embed was called incorrectly. Conditional query tags do not work before the query is run. Before then, they always return false. Please see Debugging in WordPress for more information. (This message was added in version 3.1.0.) in /home/vol13_4/epizy.com/epiz_30367402/htdocs/wp-includes/functions.php on line 5835 Notice: Function is_search was called incorrectly. Conditional query tags do not work before the query is run. Before then, they always return false. Please see Debugging in WordPress for more information. (This message was added in version 3.1.0.) in /home/vol13_4/epizy.com/epiz_30367402/htdocs/wp-includes/functions.php on line 5835 There has been a critical error on this website.

Can someone help me understand this error and provide me with a solution or some tips so that I can find a solution.