Open System Preferences > Security & Privacy. Click the Privacy tab and scroll down in the left column to Full Disk Access and select it.
Click the lock icon at the bottom left of the window and enter in admin credentials.
Click the plus button under the right column and navigate to Macintosh HD or whatever your main disk is called. You can press SHIFT-COMMAND-‘Period’ to see hidden files and select the ‘bin’ folder then select the ‘sh’ file.
Restart Sonarr and you should be good.
It’s not smart to leave it like that long term but it will fix it in the short term till Sonarr can get an update.