Actually, i just want to delete one file in the Application folder,but when i moved it to Trash, CleanMyMac notices me to use it to delete it clearly.
However after i clicked yes, it deletes all items in the Application folder,including Office,i works and Adobe etc.
I have re-installed the apps. But it seems the problem cannot be solved only by re-downloading the apps.
Facetime cannot find the camera right now and there is no responses when i click the right bottom.
Is there anyone can help me with this?