aaP_Rajib
Nope, I have already tried that. I also did
and after clicking on that link directly from my ssh client I am still unable to access the panel.

Note that I am censoring the IP to protect my server but, left the last part of the IP for verification. Also, there isn't a random string of letters after the IP and port. However, I managed to save it when I initially installed it and when I tried that it also didn't work.