@lasonik managed to fix it as well !! i tried reinstalling it, again, and deleted everything related to opera gx on my pc. let's hope the fix lasts..

@lasonik sorry for not getting back to you but the support hasnt answered for two days did you by any chance temper with a file called local status in the opera gx folder ?

@lasonik tried all of that as well, nothing worked. still waiting for an answer from the support though

@lasonik im having the exact same problem, with an error popping up every time i start opera gx.. ive sent an email to support, i could get back to you if you need !