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Suddenly video playback in Quicktime, and other players stopped working. Preview of video files doesn't work either. Quicktime gives the error message: 'Unknown error -101'. Video playback on the web works fine, and preview has no problem showing other files... Everything else is working as...

I had a fully working Catalina system, but after I changed my overclocking to default in BIOS, my system won't resume from sleep. It shows me the login-window, but it's frozen. Does anyone have tips on how to troubleshoot this? I attach my config.plist