Gstr 3b - error: how to rectify?

Hi,

In my company's GSTR 3B for month of Dec 2017, there is an error in value. By mistake , total sale has been recorded as 10 times (i.e. a 0 at the end was added) 

How can this be rectified ? GSTR 3B is already filed and submitted. GSTR 1 for month is also filed. 

Now we are filing GSTR 9 and it is having error matching to it. 

Kindly suggest the same

Thank you