alexzver

Hi!
I get the same error on my clients’ websites.

@raihan143, have you managed to solve this problem? if so, how did you do it?

@appsbd How exactly do I need to set up a firewall? Which ports need to be opened (on which port the request is made) and what else needs to be configured besides ports?

I also faced this problem today. The problem was in the PHP version. I was running 7.4. I changed the PHP version to 7.3 and the error disappeared.