I am getting some fatal and database errors when two authors logged in to my WordPress site at a time.
It could be any number of things in your unique configuration, theme and plugin combo. Not to mention if you did any core file or other customizations.
Can you share the specific errors you are receiving? 😉
how to change nameserver domain name and hosting (domain private or protection & hosting vps) . I can't change it. How to do? Thank you.