Hazel not processing rules in subfolders

I have a problem with a tagging rule that runs in folder and tags them according to date ranges. The rule preview shows that it still matches but when I run it, it doesn't add the tags I want.
The error log shows the following:
The error log shows the following:
- Code: Select all
2015-11-29 20:46:24.582 hazelworker[20764] [Error] Internal Error.: Hazel has encountered an internal error and cannot process folder Documents. Please check the logs for more details.