Can't get into my site............

Today I logged in an went to add a new subsite. I got the message "are you sure you want to do this?".

I then enabled debugging and saw some warnings so I disabled all pluggins and also my SSL redirect.

Now I can't even log in. The admin page just shows these errors:

Warning: include(/home/digitals/public_html/wp-content/advanced-cache.php): failed to open stream: No such file or directory in /home/digitals/public_html/wp-settings.php on line 74

Warning: include(): Failed opening '/home/digitals/public_html/wp-content/advanced-cache.php' for inclusion (include_path='.:/usr/local/php56/pear') in /home/digitals/public_html/wp-settings.php on line 74

Warning: Cannot modify header information - headers already sent by (output started at /home/digitals/public_html/wp-settings.php:74) in /home/digitals/public_html/wp-includes/pluggable.php on line 1228

I am at a loss here. I don't know what to do.

Any ideas?