Maybe I'm a bit too literal, but if you deleted all the certificate information, how did you expect to continue managing them?
I can only assume that you meant something more like: How can I get new certs (and manage them)?
If so, you may be in a catch-22 situation.
Where Apache fails to run because an HTTPS vhost is missing the certificate required for it to run.
And, thus, you can't use Apache to get any new certs.
If so, you must disable all HTTPS vhosts first.
And also, since we are talking about Apache, I'd be remiss if I didn't advise you to check that entire config with: apachectl -t -D DUMP_VHOSTS