In Recovery OS, Disk Utility has found corruption from its First Aid scan, but it says it can only be resolved in Recovery. The problem is, it was already in Recovery. The same thing appears when I run First Aid in Safe Boot, or normal boot. I've attached a picture of the message that appears. I'm running macOS Sierra PB 2. UPDATE: I might be wrong, but this corruption appears to be putting my Mac into a state where it nearly always crashes, so I need solutions ASAP please!