Error during WRCR : WW602 The assignment of object 000000000040000025 to level 1021 does not exist

Hi Consultants

We are using IS retail system.

For one of the materials, we are trying to change the merchandise category using Tcode WRCR.

But getting the message "WW602 The assignment of object 000000000040000025 to level 1021 does not exist".

The old post in this forum is not of much help. I tried the program RCCLINOB.

But found no discrepancy.

Please help.

Thanks

SM