Before I ask this question, note that I am referring to a strange error in the console when starting my server, not a strange kill tracking weapon in Team Fortress 2!

When I start my server, I get 2 strange sounding errors in the console. They both relate to, what I think is, missing textures. This does not affect the game play so far, but have not seen these errors on other servers. I say this is strange because I have followed the official Team Fortress 2 Dedicated Server set up guide. I have taken screenshots of the two errors:

This is error one. A lot of missing skybox textures are detected which may effect some maps.

This is error two. This is the most interesting one because it seems to be missing the variable $CO_X which seems to be referring to a development texture.

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Any help regarding fixes to these errors, or what these errors even are would be appreciated.
Note: I have sv_pure set to 2 and no mods installed. You can find my server.cfg on pastebin.

Before I ask this question, note that I am referring to a strange error in the console when starting my server, not a strange kill tracking weapon in Team Fortress 2!

When I start my server, I get 2 strange sounding errors in the console. They both relate to, what I think is, missing textures. This does not affect the game play so far, but have not seen these errors on other servers. I say this is strange because I have followed the official Team Fortress 2 Dedicated Server set up guide. I have taken screenshots of the two errors:

This is error one. A lot of missing skybox textures are detected which may effect some maps.

This is error two. This is the most interesting one because it seems to be missing the variable $CO_X which seems to be referring to a development texture.

------

Any help regarding fixes to these errors, or what these errors even are would be appreciated.
Note: I have sv_pure set to 2 and SourceMod and MetaMod installed. No plugins are installed however. You can find my server.cfg on pastebin.

EDIT: Later on I was on my server and I opened the terminal to this. I don't know what it is but seems like more missing textures?

Before I ask this question, note that I am referring to a strange error in the console when starting my server, not a strange kill tracking weapon in Team Fortress 2!

When I start my server, I get 2 strange sounding errors in the console. They both relate to, what I think is, missing textures. This does not affect the game play so far, but have not seen these errors on other servers. I say this is strange because I have followed the official Team Fortress 2 Dedicated Server set up guide. I have taken screenshots of the two errors:

This is error one. A lot of missing skybox textures are detected which may effect some maps.

This is error two. This is the most interesting one because it seems to be missing the variable $CO_X which seems to be referring to a development texture.

------

Any help regarding fixes to these errors, or what these errors even are would be appreciated.
Note: I have sv_pure set to 2.

Before I ask this question, note that I am referring to a strange error in the console when starting my server, not a strange kill tracking weapon in Team Fortress 2!

When I start my server, I get 2 strange sounding errors in the console. They both relate to, what I think is, missing textures. This does not affect the game play so far, but have not seen these errors on other servers. I say this is strange because I have followed the official Team Fortress 2 Dedicated Server set up guide. I have taken screenshots of the two errors:

This is error one. A lot of missing skybox textures are detected which may effect some maps.

This is error two. This is the most interesting one because it seems to be missing the variable $CO_X which seems to be referring to a development texture.

------

Any help regarding fixes to these errors, or what these errors even are would be appreciated.
Note: I have sv_pure set to 2 and no mods installed. You can find my server.cfg on pastebin.