Cash Ledger and Credit Ledger Setoff

Dear Sir/ Madam,

In the month of September we had sufficient credit to set off the Liability. Also

we had the Advance received from the Customer ..which is Paid through challan- Balance appearing the Cash Ledger.

but while setting off of liability & Advance in GSTR-3B the system has suggested set-off from the ITC. (Advance to be paid and GST on sales )

Now i need to set off the Cash ledger to credit ledger is it possible???

regards,

Bhavya. P