Tried to change PHP version on 1 site, Local crashed, now no sites open

Support
2

Sorry that you encountered this, @DavidG.

On macOS you can try:

  1. Stop all sites and quit Local.
  2. Open the Finder.
  3. Choose Go → Go to Folder, paste the following and press Enter:
    ~/Library/Application Support/Local/lightning-services/.
  4. Delete all folders in the lightning-services folder.
  5. Start Local and start your site - it should redownload the corrupted version of PHP.