What does this mean it happens when i shoot any gun

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Error: Material “effects/magmalurk_hotglow” : proxy “TextureScroll” unable to initialize!
Error: Material “effects/plasma_particle” : proxy “TextureScroll” unable to initialize!
Error! Flag “$translucent” is multiply defined in material “effects/freeze_overlayeffect01”!
Error: Material “effects/magmalurk_hotglow” : proxy “TextureScroll” unable to initialize!
Error: Material “effects/plasma_particle” : proxy “TextureScroll” unable to initialize!
Compact freed 327680 bytes
CClientSteamContext OnSteamServersConnected logged on = 1
Redownloading all lightmaps