traccar-server.log issue

since few days some strange error displayed on my traccar-server.log:

1- DataForwarder forward error - Broken pipe (Write failed) - SocketException (... < DataForwarder:64 < ForwarderHandler:69 < ...)
2- DataForwarder forward error - Broken pipe (Write failed) - SocketException (... < DataForwarder:64 < ForwarderHandler:29 < BaseProtocolDecoder:189 < ...)
3- error - String index out of range: 23 - StringIndexOutOfBoundsException (... < Gps103ProtocolDecoder:411 < ExtendedObjectDecoder:54 < ... < WrapperContext:102 < ...)

Can someone please help me to find explanation for above error? thanks

Are you using official Traccar?

Yes, its came with gpswox but the traccar is there As I knew

You're mistaken. They use a very customized version of Traccar.

Hmm thanks for your kind reply