Unable to convert the sender service ACC_BSer_SEN_F2I to an ALE logical sys

IN a File to Idoc senario.... this the error am getting , wot may be the issue

<SAP:Code area="IDOC_ADAPTER">ATTRIBUTE_INV_SND_SERV</SAP:Code>

<SAP:P1>ACC_BSer_SEN_F2I</SAP:P1>

<SAP:P2 />

<SAP:P3 />

<SAP:P4 />

<SAP:AdditionalText />

<SAP:ApplicationFaultMessage namespace="" />

<SAP:Stack>Unable to convert the sender service ACC_BSer_SEN_F2I to an ALE logical system</SAP:Stack>