500 can't connect to

Hello! I encountered a problem (in the attachment) when trying to create a cluster of two servers. Shows error 500 without additional information (in some threads there were similar problems, after the address there was still some description of the error), but mine is empty. I did everything...

Hello, I have four nodes and in node A I am facing this error with my PBS server whereas it is working fine with the other nodes. I went across multiple threads but couldn't find any solution to this problem. Can anyone from the experts highlight the solution to my problem ? I will be grateful...