annoying error D:

Hi guys.
so i was playing gmod and then i started to get this error when i open spawn menu (the spawn menu opened but the error still showed up"
ERROR: GAMEMODE:‘OnSpawnMenuOpen’ Failed: gamemodes\sandbox\gamemode\spawnmenu\spawnmenu.lua:63: attempt to call field ‘SpawnMenuOpen’ (a nil value)
so its really annoying to have this error everytime when i open the spawn menu
and when i try to spawn an NPC it spawn but also gives this error.

:1: attempt to call field ‘SpawnedProp’ (a nil value)
and its also really annoying can someone help me please ?

someone?

Try to reinstall. Or à cleanup

k il try thanks