Hi I've had Beagle running for a while but when I search for files it can't find them. I suspect the index isn't getting updated. How would I check for this?

I greped the logs and got this back

2007-04-14-09-05-57-Beagle:070414 0906141789 05195 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-15-12-57-07-Beagle:070415 1257201000 05777 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-15-21-20-43-Beagle:070415 2121028561 05197 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-16-09-27-33-Beagle:070416 0927463901 05424 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-16-23-56-29-Beagle:070416 2356477845 05207 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-17-08-14-59-Beagle:070417 0815166900 05215 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-17-18-30-48-Beagle:070417 1831059563 05208 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-18-09-11-25-Beagle:070418 0911421401 05257 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-19-08-36-22-Beagle:070419 0836406419 05210 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-20-10-24-08-Beagle:070420 1024280981 05194 Beagle ERROR: Caught exception while instantiating Files backend
2007-04-21-01-49-54-Beagle:070421 0149543328 31341 Beagle DEBUG: Command Line: /usr/lib/beagle/BeagleDaemon.exe --a llow-backend Files --bg