Ultimate Team Mode got into a glitched session

FC 27 was all okay before this glitch came on, whenever I try to get into Ultimate Team mode, it freezes after 10 seconds of loading and completely crashed back to desktop.  I play from steam via PC. At first, I thought it was hardware problem and I tried everything I could, of all the solutions from online. One thing said I need to change active squad so I tried to log in from Companion App from my phone, and it's also showing "Signed into another device" all the time. I even cannot change my squad and my game also crashing every time I tried to get into Ultimate Team Mode. Is there any solutions for this?