Help!!! Gmod error!

how i can fix this?

http://cloud.steampowered.com/ugc/470862413663682283/8FAA5FE6627E148D207DB1A85D016E5C155E01E0/

http://cloud.steampowered.com/ugc/470862413663683447/ACAD5E63A58DD14F80FCFC339F3A94F709B871EB/

http://cloud.steampowered.com/ugc/470862413663675198/15769AFEAA87CF29E1452819C4A0F9D68F35B206/

-dxlevel 81 in set launch options