When we request the Ceph status we get HEALTH_ERROR

We are using replica 3

ceph health detail

HEALTH_ERR 1 pgs inconsistent; 1 scrub errors
pg 1.11d is active+clean+inconsistent, acting [113,280,210]
1 scrub errors

When we try to repair it we are seeing the following traces:

ceph pg repair 1.11d

instructing pg 1.11d on osd.113 to repair

Log traces

2016-07-25 15:07:58.122452 7f4f5a457700 0 log_channel(cluster) log [INF] : 1.11d scrub starts
2016-07-25 15:08:01.864039 7f4f5a457700 -1 log_channel(cluster) log [ERR] : scrub 1.11d
..../head no 'snapset' attr
2016-07-25 15:08:01.886549 7f4f5a457700 -1 log_channel(cluster) log [ERR] : 1.11d scrub 1 errors

Could you help us to resolve it ?

Thank you very much,

Best regards,