Upgrade Wizard don't finish

On my last update was not completed successfully and now always stays on this screen. Does anyone know what might have happened?
Follow photos of how it was after the crash and even if you click next, it processes and when you return to the update screen back on the same screen.

SuiteCRM 7.8.1

Fix your permissions, try again.

If it still doesn’t work, look in your logs to see what the error is.