gstr1 for reg. persons having turnover less than 1.5 cr

I have already filed the GSTR-1 July return which was Nil.... But when I try to file return for GSTR-1 August which is again NIL  it shows error..... 

"Error! GSTR-1 Save/Action on Counterparty Invoices/Submit are not allowed for current date, Please visit https://www.gst.gov.in for details on GSTR-1 timelines."

Is it me only or everybdy is facing the same problem?