Refer the below link to find the solutions for all activation problems -
Seems that my device ID will need to be released.
I was using trial version way back in late 2016. I moved to other technology in 2017, and now I am switching to UI PATH once again. A lot has changed since 2016, hence I need community version.
You can give this this topic a read:
Excellent post! Very detailed and also answered the question I had w.r.t. why my community edition says that it expires in few weeks.