SWJKA All servers has no texture. Assertion Failed Error

[Aura]

Hi guys, I have a problem. Today I wanted to play normal JKA i tried to join a server then this message showed up (playing as windowed):

Then I pushed the ignore button. Then went in the game it was some textures showed up like this

And there is my GameData

There is my Base folder

Also my server Source: is like this:

(Sorry about my English) Oh also i can join base servers and i can create servers. Nowadays my brother is modding i dont know anything about that

maybe this was his thing ._.

[Aura]

I figured it out if i join a 0 player server it doesnt gives the error. But if i spawn Desann (Alora and Cultist works) it gives me the error. I figured it out but i don't know how to fix it what should i do ? I have a lot of mods and i'm making a mod right now. If i reinstall they will be gone (my brother mods and idk which files to backup)

[eezstreet]

Don't know, try reinstalling. Maybe @@Serenity can help, since Evolution of Combat is his mod.