What is an Unknown Error (50) on table WDC_Children_TEMP?
This error is probably caused by the Ctree cache table being corrupted because it has grown to contain too many records (more than 4 million). With Version 6.00 build 8, the cache usage has been optimised, so the number of records or nodes is greatly reduced. This should avoid this issue coming up again. Please delete the WDC51101.DAT and WDC51101.IDX files and install build 8, leave Background Caching on. The solution for earlier builds was to first delete the WDC51101.DAT and WDC51101.IDX files and then turn Background Caching off, so that only the children/nodes actually being used are cached. This will keep the cache as small as possible, if the cache gets too big again, you can always reset it or delete the files again. With Background Caching turned off the cache records for a user will be created the first time that user is accessed.