Could you show that last request? Command ls -lh
Anyway, shutdown server.
Delete those both metamod.vdf files.
https://www.sourcemm.net/downloads.php?branch=stable
Grap mm:s stable linux zip pack and extract into your server.
Do not create new metamod.vdf file.
Launch server.
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https://forums.alliedmods.net/showthread.php?t=329759
You should confirm that mm:s did not load, using server command:
meta version
That error message could have mean that it not loaded 32bit mm:s
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