You have 2 issues. @Visvanath is, I think, correct about one. The other, if I remember correctly ...
This error:
[authz_core:error] [pid 2650006] [client 185.82.216.14:46824] AH01630: client denied by server configuration: /home/mysite/public_html/
Could be a result of upgrade/change to configuration of apache service.
<Directory "/home/mysite/public_html">needs 'Require all granted' added to config.
Check with provider docs/faqs/helpdesk.
'SoS', Ken