allo!!! all

I am having the error from my NDMP backup. Cannot see where it is coming from. Help pls

42742:nsrndmp_save:Tape server paused: reached the end of medium Backup checkpoint at Aug 18 22:24:42:32 2015, Absolute offset 167852185040, relative offset 1678521815040, node spanning chkpt 1262497, start offset 1678479763456, file size 65124230

42897: nsrndmp_save: Opened the tape device: nsrt30a

42619: nsrndmp_save:NDMP service Error: MOVER: SET WINDOW MOVER: window size to small or  \t\t\t not a multiple of record size

42619: nsrndmp_save:NDMP service Error: MOVER: CONTNUE MOVER: window size is not set

42597: nsrndmp_save : mover continue: required preparatory action has not been performed

42617 :nsrndmp_save: NDMP service Log: DUMP: tue Aug 18 22:46:56 2015 : we have written 1639181767

42617 :nsrndmp_save: NDMP service Log: DUMP : DUMP IS ABORTED

42619: nsrndmp_save:NDMP service Error: DATA: Backup Terminated (for /vol/ )

42738: nsrndump_save: Data server halted: the backup is aborted by operator.