TSchemaHelperCacheManager

System

Can someone tell me - what the:
TSchemaHelperCacheManager is in my iwddd log file I have a
whole bunch of these lines:
TSchemaHelperCacheManager: Cache size is 2 <= 500, Mon Nov 25 12:12:35 EST 2002

and I don't know what they mean - I have a cgi-callout to a form which in my DCT returns a 500 Internal Server Error
on a script that has been working fine for months

Thanks