Help on filling wrong information in G325a form!

HELP! I found we put wrong time periods in the living history column on the G325s form last year when we ted the I-485.
What bad effect can it incurred? How can we do to minimize the result? Is it a reason of delaying of I485 approvement? A lot people who applied the same time as us have got GC already. Do we need a lawyer? Can we re it? I am mad... Please help...