This is Alarm Indicating you about the change in Adjacent cell configuration mismatch in between BSC’s.To minimize this kind of problem try to use OSS to rehome the sites from one BSC to other,so that the adjacent cell data also will update automatically.
Try to use this command this time to find the probalametic adjacencies…
By this command you can find the following
DUPLICATE NCC+BCC+FREQ NOT FOUND SAME BCCH FREQUENCIES NOT FOUND ILLEGAL HO TARGET AREA VALUES NOT FOUND
You can delete the unwanted adjacencies too.