If you were able to turn that off, I would turn it back on. It's a good security feature. Also, be aware that Options directives in .htaccess are broken for any user whose account was migrated from cPanel. Fixing that issue requires resetting your account. Your account has a 2019 date, so its definitely a migrated account.  I would comment out any directives relating to symlinks from .htaccess. I'm not sure why Joomla's docs would suggest that be included as to my knowledge Joomla itse