I powered up my iMac as usual tonight. The AdGuard Shield/icon has an exclamation point. I clicked on the icon and tried to turn it on. Nothing! Tried several times with no results. I also run Malware Bytes. I noticed that the icons for Malware Bytes and AdGuard had switched positions on the upper tool bar. So I quit AdGuard and the icon disappeared. Went to launchpad and clicked on AdGuard. That brought it up and it is running fine. My question: Is what I described normal or just a freak occurrence? I did notice an AdGuard alert , similar to news alerts that pop up on the screen when the computer is powering up that AdGuard had been updated. Thanks.