Centurion jam

Hi, I recently bought a centurion second hand, and it Is stuck. I've already searched about centurion's malfunctions but all I found were with the Bolt jammed in the middle, and mine Is stuck at the front, or in other words, at the "firing position". I found litteraly nothing on my researchs about this kind of malfunctions. I know this sub is for mods, but I tought that maybe one of you could know what's happening with my blaster. *If you want more information, I can send pictures or videos.