C4- causing server crash

[UPC]

When players walk away from the c4 or teleport away, the server crashes and gives this error for too many lua errors:

[ERROR] gamemodes/terrortown/entities/entities/ttt_c4/shared.lua:308: attempt to call method 'Disarm' (a nil value)
1. unknown - gamemodes/terrortown/entities/entities/ttt_c4/shared.lua:308

Any help?

[Netheous]

3 things:
-Provide the code, we aren't magicians to pop the code out of our butts.
-I doubt this error would crash the server.
-The error itself means that you are running a clientside function serverside (or in reverse) OR the function doesn't exist at all (there was an error so the function doesn't work or it was simply removed from the code)