Filament will not feed into AMS

Hi, good evening,
sorry to bother you but i have the same problem as you, the ams is going crazy. additionally, i have checked the PTFE tubes, the extruder, all the ams parts but there is nothing strange, no jamming or anything like that.
could it be a firmware error.
before i didn’t have this problem.
is my first comment in this forum. thank you very much.