Hey Juptian,
It looks like Overwatch was crashing due to Razer Chroma recently:
2019-04-10 9:31 PM Application Error Overwatch.exe RzChromaSDK64.dll_unloaded, version: 3.0.0.29
Since you already have the Razer Beta, you may want to try disabling the Chroma settings in the software or temporarily uninstall Chroma and retest Overwatch. You can find more information on that here.