I can't update to Premiere Pro CC 2018
I wasn't able to update Premiere because I didn't update my mac, but I just updated it, and all my other apps have been updated, but every time I try to update Premiere I get an error message saying "Another installer instance is running. Wait for it to finish and try again." But I'm not installing anything else. So I waited for like an hour and it keeps giving me the same message every time I try to update it. I thought it was just Premiere, so I tried installing another app but I just got the same error message as I did with Premiere.

Could some one please help?