I had a code signing issue on my Mac which caused Apache to fail. The new Sequoia Update had installed a new LoadModule to Apache which was not "code signed". I found the problem .so module in the apache logs by running: sudo apachectl -k start -e debug

What you want to do to fix: Open your apache2.conf config file and locate the offending LoadModule Line of code. Then add your certificate name in quotes: eg. "Joe Smith"; after the line. Restart your apache: sudo apachectl restart.