Do not continue. Getting the first row absolutely straight is the foundation - perhaps the most critical part- to a successful installation. If your first rows are not properly aligned, or the joints are not tightly sealed, the entire installation will be compromised. (The error will magnify as you continue installing.) Along both sides and ends, all planks must be parallel to each other or there will be wedge-shaped gaps between planks. If residue is caught in the grooves, poor alignment can also result. Remember to make sure all grooves are clean before installation.