So, I didn't played a lot of time and I started do it today. And all my textures disappear, nobody can see them in multiplayer. I'm asking cause they are actived. Help?

That's because there is a bug with unoficiall clans' tags
http://forum.toribash.com/showthread.php?t=370963
There should be some sort of hotfix for that soon enough so don't worry.

Thank you so much!