BUPA_REL bdocs are in E04 state

Hi all,

Bdocs are failed with error text "Function G1 does not exist". and information error is "No extension entered" .Details are as follows

Bdoc type : BUPA_REL

State : E04

Queue name : R3AD_CUSTOME0004700005

checked SMQ1/SMQ2 transactions, no queues are there.

Help me how to clear those bdocs.

Thanks & Regards,

P.V