Premium Capacity Metrics App - Edit UTC_offset

Hi ,

While configuring , By mistake I wrote 'PST' in UTC_offset. I should have given +8 .
Now dataset refresh is failing with below error. '

• Data source errorDataFormat.Error: We couldn't convert to Number.. <ccon>PST. </ccon>;We couldn't convert to Number.. The exception was raised by the IDbCommand interface. Table: Artifacts.'

How to edit UTC_offset?