MacOS noob: Access to the path is denied

Sonarr version (exact version):
Mono version (if Sonarr is not running on Windows):
OS: MacOS 10.15.7
Debug logs:
Description of issue: Fresh install, trying to download to an external drive. Getting error regarding “access to the path is denied”. Can someone please help me interpret my debug log to work out how to fix this? Super appreciate it.

Solved by upgrading to V3