Error Vertex File


So I started gmod and started a game, this keeps spamming into my console for no reason. I don’t know why. I have seen some posts about this before, but none of them have helped.
They said something about that it has the same name as another .mdl file. And it is overwriting it. I used the map “rp_rockford_open” and got these messages spammed.

Error Vertex File for 'props_wasteland/exterior_fence002e.mdl' checksum 624009046 should be -1512471858

Please help.

I tested this on another map. Still the same error.
The map used: rp_downtown_v4c_v6

This is a map error and not something you can fix without repacking.

No I have tested to run another map, still the same error.