unexpected EOF while parsing (<unknown>, line 1)

[ADVALAKI]

Got this issue in parser.py

also can't able to decrypt massage.

connection received from client ('127.0.0.1', 52521)
connection received from client ('127.0.0.1', 45969)
connection received from client ('127.0.0.1', 54641)
unexpected EOF while parsing (, line 1)
connection received from client ('127.0.0.1', 57561)
connection received from client ('127.0.0.1', 58147)
unexpected EOF while parsing (, line 1)
connection received from client ('127.0.0.1', 39220)
connection received from client ('127.0.0.1', 50065)
connection received from client ('127.0.0.1', 46154)
connection received from client ('127.0.0.1', 47374)
connection received from client ('127.0.0.1', 39599)
connection received from client ('127.0.0.1', 54960)
connection received from client ('127.0.0.1', 38419)
connection received from client ('127.0.0.1', 60649)