Error in Linked Server

Hi,I am getting the below error while running the query. Allow in process in unchecked as well. How to fix it. Msg 7350, Level 16, State 2, Line 1Cannot get the column information from OLE DB provider "MSDASQL" for linked server "ADDCDB2P". OLE DB provider "MSDASQL" for linked server "ADDCDB2P" returned message "[Microsoft][ODBC SQL Server Driver][SQL Server]Invalid object name 'U.UPERSNX'.".SELECT * FROM OPENQUERY(ADDCDB2P, 'select * from u.UPERSNX WHERE I_PERSN =1161526')