It's unsupported to run multiple servers sharing the same sourcemod directory - unless this is a case of you've separated them, but have symlinked sourcemod/configs together, in which case the answer is obvious: remove the symlink.
If you are indeed running multiple servers from the same sourcemod install, you're very lucky that this is the first problem you've run into.
https://wiki.alliedmods.net/Multiple...28SourceMod%29
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