suddenly pgperror , after many succesful days

[jonabert]

File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/types.py", line 539, in call
obj.parse(packet)
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/packet/packets.py", line 885, in parse
self.keymaterial.parse(packet[:pend])
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/packet/fields.py", line 1625, in parse
ECDHPub.parse(self, packet)
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/packet/fields.py", line 724, in parse
self.kdf.parse(packet)
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/packet/fields.py", line 1115, in parse
assert packet[:2] == b'\x03\x01'
AssertionError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/home/jonathan/r2r/r2r/proton_mail_fetch.py", line 59, in
full_message = proton.read_message(message)
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/protonmail/client.py", line 128, in read_message
message.body = self.pgp.decrypt(message.body)
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/protonmail/pgp.py", line 37, in decrypt
pgp_private_key, _ = self.key(private_key)
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/protonmail/pgp.py", line 146, in key
return PGPKey.from_blob(blob)
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/types.py", line 195, in from_blob
po = obj.parse(bytearray(blob, 'latin-1'))
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/pgp.py", line 2647, in parse
[ operator.ior(pgpobj, PGPSignature() | sig) for sig in group if not isinstance(sig, Opaque) ]
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/pgp.py", line 2647, in
[ operator.ior(pgpobj, PGPSignature() | sig) for sig in group if not isinstance(sig, Opaque) ]
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/pgp.py", line 2617, in _getpkt
return Packet(d) if d else None
File "/home/jonathan/anaconda3/envs/got/lib/python3.10/site-packages/pgpy/types.py", line 542, in call
raise PGPError(str(ex)) from ex
pgpy.errors.PGPError
(got) jonathan@GAMER005:~/r2r/r2r$