Gyro Gearloose Said:
"Stop nagging about using my iPhone to make calls through my iPad or Mac: Every time I restart my Mac or iPad I get nagged with an offer to allow it to make calls using my iPhone. Is there a way to stop that? I’ve answered it dozens of times already. Yes, OK doesn’t matter what answer."
-------
Troubleshooting Mac Messages:
Boot into Safe Mode [Hold Down: shift key upon boot] and then perform the following:
A. Scan: your Mac for Malware:
Use MalwareBytes for Mac --- This is software that searches for malware/adware. So, scan with it and then remove what is found. Once removed, uninstall MalwareBytes for Mac. Then restart the Mac.
Downloads:
- Malwarebytes Anti-Malware for Mac
- Malwarebytes Uninstaller
B. Remove: Login Items:
See if there are any Login Items. If so, remove them as such and then restart the Mac, seeing if this no longer load(s) at login. Go Here: Change Users & Groups Login Items preferences on Mac - Apple Support.
C. Create a New Admin User:
Create anew Administrator User and then log in to it. See if you still get this error. If not, then it is an issue pertaining only to this user. If so, then it is an issue with the entire macOS.