PC [BUG] White Screen Bug after a couple of minutes / secondes

Hello there,
i got this bug screen in the game. I can play for a couple of minutes / seconds. My Steam Version is 1.37 not 1.45 at all, see second picture below.
Have anybody an idea?

System Information
Time of this report: 7/30/2020, 10:17:23
Machine name: MARCIS-LAPTOP
Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_ldr_escrow.190828-1732)
Language: German (Regional Setting: German)
System Manufacturer: Hewlett-Packard
System Model: HP EliteBook 2540p
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i5 CPU M 540 @ 2.53GHz (4 CPUs), ~2.5GHz
Memory: 4096MB RAM
Available OS Memory: 3888MB RAM
Page File: 4835MB used, 2937MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

DxDiag Notes
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Input Tab: No problems found.


I have that white screen too since 1.4 (btw. the "Dateiversion" isn't the game version. See the credits in the main menu ("?" button) and then the version in the lower left corner.) and I saw an old steam discussion about this. Seems that this could happen every now and then. What worked for me is to use the shortcut for the task manager (strg+alt+entf)(ctrl+alt+del) and then not to open anything there but cancel directly. Then you should see the game again.