If you see the errors below in Apache error log
tail -f /usr/local/apache/logs/error_log
AH01980: bad response from OCSP server: (none)
AH01941: stapling_renew_response: responder error
WHM > Apache Configuration > Include Editor > Pre VirtualHost Include > ALL Versions
Paste the text below and click update, then restart Apache
Sites and servers affected by OCSP errors should work fine after that.