If your campaign had a carry forward amount from a previous campaign (candidate committee and single election year committee) or the previous calendar year (continuing committee), the amount will show on line 1. This is correct.
If you entered a contribution with a deposit date prior to the campaign start date, the deposit will be reported as a carry forward amount and appear on line 1 of the C-4 instead of line 2. Adjust either the campaign start date (Click the green Campaign Info button, then click the pencil icon next to campaign start date) or the deposit date.