Driver stop working all the time. NVIDIA GTX 760

My game keeps crashing and losing the Video Driver in random times.
Played the beta without any problems...

tested with Directx 9 and 11.

Config:
i5 6600k
nvidia 760gtx
windows 8.1

production_Config.ini:
https://pastebin.com/yyUidjq8

Client log:
2017/08/04 19:09:14 ***** LOG FILE OPENING *****
2017/08/04 19:09:14 1046127656 1bc [INFO Client 2468] Send patching protocol version 5
2017/08/04 19:09:14 1046127859 22e [INFO Client 2468] Web root: http://patchcdn.pathofexile.com/3.0.0.2/
2017/08/04 19:09:14 1046127859 22f [INFO Client 2468] Backup Web root: http://patch201.pathofexile.com:8095/patch/3.0.0.2/
2017/08/04 19:09:14 1046127859 23a [INFO Client 2468] Requesting root contents 1
2017/08/04 19:09:15 1046128078 264 [INFO Client 2468] Got file list for "" 0
2017/08/04 19:09:15 1046128078 2c2 [INFO Client 2468] Finished checking files
2017/08/04 19:09:25 1046138359 139 [CRIT Client 2468] Failed to call DeviceD3D9::Reset: D3DERR_INVALIDCALL
2017/08/04 19:09:56 1046169328 8e [INFO Client 2468] Async connecting to br2.login.pathofexile.com:20481
2017/08/04 19:09:56 1046169406 b0 [INFO Client 2468] Connected to br2.login.pathofexile.com in 62ms.
2017/08/04 19:13:01 1046354718 139 [CRIT Client 2468] Failed to call DeviceD3D9::Reset: D3DERR_INVALIDCALL
2017/08/04 19:13:05 1046358328 139 [CRIT Client 2468] Failed to call DeviceD3D9::Reset: D3DERR_INVALIDCALL