SD pages not loading

SD pages not loading

Hello, I have upgraded SD from 9003 to 9400 in sequence and it started acting strange for example the start splash screen of manage engine doesn't show anymore


anyhow managed to get it work somehow, then i have enabled "https" rebooted server and cannot login to SD anymore, it shows a blank page and prompts to download pagename.do

I have attached the serverout logs and a screenshot. 

Thank you for help in advance. 

                  New to ADSelfService Plus?