Error executing action Generate playlists: Invalid floating point operation

Starting this morning mAirlist stopped generating playlists using the Generate Database Action in an event. If I manually generate the event in the Database Window everything is fine.

This is the error from the event log: Error executing action Generate playlists: Invalid floating point operation

This setup has been running for years within any problem. What could be the problem?

Version 6.27 Build: 4176

Turn on Debug Mode in Config -> Misc Options, it will save a bug report and print the file name to the system log. Send it to support@mairlist.com.

Done! Will send you an email as soon as I got the debug report. Thanks!