After hours of installing, reinstalling, downloading libraries I cannot get Steam to launch any of my games that I have installed [Dota 2, CSGO].

The steam output in the terminal is always the same:

No cached sticky mapping in ActivateActionSet.Game update: AppID 570 "Dota 2", ProcID 6707, IP 0.0.0.0:0

ERROR: ld.so: object '/home/fabio/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.

ERROR: ld.so: object '/home/fabio/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.

ERROR: ld.so: object '/home/fabio/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.

Game removed: AppID 570 "Dota 2", ProcID 6707 

My custom launch settings are: optirun -b primus %command%

Please can someone help, if you need anymore info about my system please let me know. I am running a gtx 765m with intergrated intel graphics, that is why I need to use optirun.

EDIT: Formatting EDIT: FIXED I was running steam with Optirun because of some steam client bug!, I fixed this and all works now.