PC Random Shutdown

Since a week, I can’t play any games with a higher graphics than League. Everything else not crashes instantly but always midgame when something new is loading for example, but I still can hear the desktop audio. I think my SSD is the problem. In the logs i find this failure: (sry for german)

Volume "C:" (\Device\HarddiskVolume3) muss kurzzeitig offline geschaltet werden, um eine Reparatur von Beschädigungen auszuführen. Führen Sie "CHKDSK /SPOTFIX" lokal über die Befehlszeile oder "REPAIR-VOLUME <Laufwerk:>" lokal oder remote über PowerShell aus.

Does anyone ever experienced this?