Not able to save dataset

Dear All

We have an instance where since last 10-15 days we are not able to save one particular data set. Other data sets are getting saved.

After clicking save button, error on console is as follows :-

{“httpStatus”:“Internal Server Error”,

“httpStatusCode”:500,

“status”:“ERROR”,

“message”:“ERROR: *update or delete on table "dataelementoperand" violates foreign key constraint "fk_datadimensionitem_dataelementoperandid" on table "datadimensionitem"\n Detail: Key (dataelementoperandid)=(2163625) is still referenced from table "datadimensionitem*”."}

Version:

2.25
Build revision:
1a4ffcd26
Build date:
2017-07-18 12:38

Has anyone faced this kind of error? Please help on what could be this issue and how it can be fixed?

Thanks

harsh