How to find the problem in the server settings?

Question

ISPmanager

I don't know where the problem is, I only see the consequences:
1 - when starting a domain (the system defines its SP as local) - but not the main one.
2 - It costs 2 domains, one is priority, the second is not. On the second domain I made a cname record - everything opens the first priority server as it should be, and not the one that is needed. prntscr.com/jwn7f9
3 - partially the script gives an error on graphics processing only where the graphics are processed by the php code,
but this is what I noticed. In general, the problem is in some settings with isp - so I was initially transferred and set up the domain, it was tolerable earlier, now it is critical. Knowing prompt though where to dig.

Answer 1

here cname can be seen the error
opens 164.132.45.33 and pings the norms
prntscr.com/jwnhl0
record for the first time - there is no cache,
164.132.45.33 has already been registered - the priority domain, the second just as the domain was created on the server 164.132.45.33