Alors voila le problème :

1) je me co sur le serveur a partir de "Envoit des info clients" sa me remet a la page d´acceuil

Sur la console c´est écrit :

Warning: using WorldTwoTextureBlend on a non-displacement surface.
Support for this will go away soon.
- Material : de_dust/groundsand_blend
- Surface center : -1920 2440 0
Warning: using WorldTwoTextureBlend on a non-displacement surface (material: de_dust/groundsand_blend). Support for this will go away soon.
Failed to load sound "friends\friend_ingame.wav", file probably missing from disk/repository
RecvProp type doesn´t match server type for DT_LightGlow/m_flGlowProxySize
Host_EndGame: CL_ParseClassInfo_EndClasses: CreateDecoders failed.

CAsyncWavDataCache: 3 .wavs total 0 bytes, 0.00 % of capacity

Qq´un peut-il m´aider ? :/