LucidLink: Invalid Key Element Type

The issue is typically caused by an ungraceful shutdown of the LucidLink application while it's trying to write blocks to the cache (e.g., a system crash or powering down the machine).

1. Exit Lucid completely
2. Navigate to your User home folder in macOS Finder (for example /Users/dave)
3. View Hidden Files & Folders (Command + Shift + Dot)
4. Within the hidden .lucid folder, rename the folder instance_501 to instance_501old
5. Open Lucid and reconnect to the Filespace
6. Delete the instance_501old folder