Tue Jun 25, 2019 12:38 pm
You are asking if you can delete the specific alert's in the log's that cause the UI to show an exclamation mark?
If that's the case, all you have to do is check the logs and that notification will disappear.
If you wish to delete a line in the log file's for whatever reason, then the log file is stored at /var/log/messages
Drop into the console and use nano to open the file and delete the line of interest if you wish.