External Def activation error

Hi Experts

I am trying to activate an xsd that has been generated under the external definitions, but it is giving the following error,

Can anyone let me know how to avoid this error and activate the xsd.

DB2 SQL Error: SQLCODE=-913, SQLSTATE=57033, SQLERRMC=00C9008E;00000304;XIXXXZKR.PVSETEL .X'000761' '.X'2A', DRIVER=3.58.91

Thanks

PR