The server i am hosting is spitting out this error when someone in a tank is trying to join back on the server

95.624 Error MainLoop.cpp:1035: Exception at tick 32041326: Error while running event morebobs::on_player_driving_changed_state (ID 26)
Gui element with name set_recal_tank already present in the parent element.
stack traceback:
morebobs/mlib/tanks_for_bob.lua:71: in function 'tankOpenGui'
morebobs/mlib/tanks_for_bob.lua:47: in function 'tank_talk'
morebobs/mlib/tanks_for_bob.lua:7: in function <morebobs/mlib/tanks_for_bob.lua:6>
95.624 Error ServerMultiplayerManager.cpp:96: MultiplayerManager failed: "Error while running event morebobs::on_player_driving_changed_state (ID 26)
Gui element with name set_recal_tank already present in the parent element.
stack traceback:
morebobs/mlib/tanks_for_bob.lua:71: in function 'tankOpenGui'
morebobs/mlib/tanks_for_bob.lua:47: in function 'tank_talk'
morebobs/mlib/tanks_for_bob.lua:7: in function <morebobs/mlib/tanks_for_bob.lua:6>"
95.624 Info ServerMultiplayerManager.cpp:699: mapTick(32041326) changing state from(InGame) to(Failed)
95.625 Info GlobalContext.cpp:696: Waiting for child processes to exit:
96.344 Info ServerMultiplayerManager.cpp:142: Quitting multiplayer connection.
96.344 Info ServerMultiplayerManager.cpp:699: mapTick(4294967295) changing state from(Failed) to(Closed)
96.474 Info UDPSocket.cpp:206: Closing socket
96.474 Info UDPSocket.cpp:236: Socket closed
96.476 Goodbye