july,18 ke gstr1 me mistake se without any vouchers ke total me sirf output sale ko lekar file kar diya gaya hai aur us month ka gstr 3b abhi tak filed nh hua hai to kya karna chahiye...
First you file your July-2018 GST3B return Correctly and whatever Mistake you made in Current GSTR-1 you can amend the detail in next month GSTR1.. Your Problem will solved