Error with media when execute SLP Deduplication

Hello,

I have a image in disk pool, but when slp deduplication is execute i have de the next error;

Error bptm (pid=28784) FREEZING media id 000080, Medium identifiers do not match

i see the media and i use unfreeze, and the become active again, so i do;

- inventory robot check: the media is on

- I use label : 

media manager found wrong tape in drive  (93)

Can help me please

Regards