SOP Instance is not unique

Strange issue yesterday when a study would not go through. Patient information identical to a previous study, although given an unique ID number. These are the applicable lines from the server log:

[SIMPLEDICOM] Calling Application Title : "SCU "
[SIMPLEDICOM] Called Application Title : "SIMPLEDICOM "
[SIMPLEDICOM] Application Context : "1.2.840.10008.3.1.1.1", PDU length: 32768
[SIMPLEDICOM] Presentation Context 0 "1.2.840.10008.5.1.4.1.1.1" 1
[SIMPLEDICOM] ***SQLITEExec error: column SOPInstanc is not unique
[SIMPLEDICOM] ***Error saving to SQL: Fonger__Jennifer\1.2.392.200036.9125.3.251851094179.64746845669.6002058_1001_001001_14019105513c8a.dcm
[SIMPLEDICOM] ***SQLITEExec error: column SOPInstanc is not unique
[SIMPLEDICOM] ***Error saving to SQL: Fonger__Jennifer\1.2.392.200036.9125.3.251851094179.64746845669.6002059_1002_001002_14019105523c8b.dcm
[SIMPLEDICOM] UPACS THREAD 33562: ENDED AT: Wed Jun 04 12:35:52 2014
[SIMPLEDICOM] UPACS THREAD 33562: TOTAL RUNNING TIME: 2 SECONDS

Any suggestions about what we can do to edit the patient correctly? Many thanks

Maybe I was not being too clear - the patient ID and other info is identical for this and the previous study. It is only the study ID that is different. Thanks for your help.

Thanks Marcel - any ideas about how we could fix this to get the study through? Our software allows us to change the study ID and patient info, but that's about all.