Overwatch won't start (Battle.net Launcher)

Hey,
I’ve installed Overwatch via Lutris. It finished downloading. So I clicked on play in the Battle.net Launcher then it said game starts. Everything normal but then the playbutton was blue again and said “Play”. So it didn’t started.

(Using Proton 4.2.6)

Here is the log:
Running /home/ME/.steam/steam/steamapps/common/Proton 4.2/dist/bin/wine /home/theo/Games/overwatch/drive_c/Program Files (x86)/Battle.net/Battle.net Launcher.exe --exec=launch Pro
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
Waiting on children
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
Waiting on children
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
2019-06-08 19:15:56,205: Unable to read stat for process 11445
2019-06-08 19:15:56,205: Unable to read stat for process 11445
Waiting on children
ATTENTION: default value of option mesa_glthread overridden by environment.
2019-06-08 19:15:57,741: Unable to read stat for process 11464
2019-06-08 19:15:57,741: Unable to read stat for process 11464
Waiting on children
2019-06-08 19:15:57,743: Unable to read stat for process 11467
2019-06-08 19:15:57,743: Unable to read stat for process 11467
Waiting on children
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
Waiting on children
ERROR: ld.so: object ‘/usr/lib/x86_64-linux-gnu/libgamemodeauto.so.0’ from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
Waiting on children
Waiting on children
Waiting on children
2019-06-08 19:16:24,851: Unable to read stat for process 11537
2019-06-08 19:16:24,851: Unable to read stat for process 11537
Waiting on children
2019-06-08 19:16:24,945: Unable to read stat for process 11437
2019-06-08 19:16:24,945: Unable to read stat for process 11437
Waiting on children
2019-06-08 19:16:25,215: Unable to read stat for process 11381
2019-06-08 19:16:25,215: Unable to read stat for process 11381
All children gone
Exit with returncode 0