ORA-01578: ORACLE data block corrupted (file # 6, block # 1856) ORA-01110:
                    
One of my aplications is getting this error message ORA-01578: ORACLE data block corrupted (file # 6, block # 1856) ORA-01110:.  I have tried to recover the corrupt data block using RMAN to no avail.  Please help as I am new to Oracle.                 
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