I've just moved from old to new server but have many problems now. What I did was:
- Initial set up of cpanel; 2. Change of hostname from default to my domain aaa.aaa.com; 3. Migrate multiple accounts via cpanel VHM; 4. Changed one site's DNS to new server.
Now on this site I have frequent and random 500 errors, sometimes "out of memory" errors and many more problems which I havent had anything like it before.
I'm particularly interested in this: when the wordpress site on a new server was live, I realised that there are 500 errors and I closed it with "underconstruction" wp plugin and did some other changed in WP backend, but it seems that all those changes were applied to my old site.
How can it be if it was on a new server, with different ip and new dns? If I change something on a new, the old one changes.. Are they in sync? Could those 500 errors be because of those two servers in conflict or smth?