I installed CWP successfully on my domain (https://domain.com/) and created nameservers ns1.domain.com , ns2.domain.com, 24 hours ago but godaddy says Nameserver not available. How to fix it.

We have a simple word press website having articles and some videos , though we have enough bandwidth with 2GB RAM, whenever real time traffic reaches around 1500 visitors website get crashed and doesn't load. Please ...

My primary domain is Oyemr.com (https://oyemr.com) I tried adding a sub domain http://ifsc.oyemr.com using cPanel but it's not opening and shows this message 500 Internal Server Error The server encountered an interna...