Problem during creation of DTP

Hi,

I am creating a dataflow for populating the text table of an infoobject.

The extractor is a domain type extractor.

While creating the DTP for it, i am getting an error saying "Subfield access (offset = 0, length = 3-) to a data object of size 30 outside valid limits."

Any idea what this error might be due to? i looked into the extractor, and its structure and the fields are automatically generated by the system once after i enter the domain name and save it.

All the fields like long texts, short and medium texts length are automatically set by the system.

Thanks

karthik