I'm a beginner knitter and I'm using a loom to make a basket weave afghan and the problem is, I discovered that on one row (the whole row), I knitted when I should have purled. The next row is a line of knit all and I just started the following row when I discovered my mistake. I only discovered it because I write down what I'm supposed to do on each row and I saw that I had written it down wrong. Being on a loom and to my inexperience, I do not know how this will look if I leave it as it is. But I don't want to continue on and then find out that it'll stick out like a sore thumb and have to take out who knows how many rows then.

Can anyone tell me how badly this may look and what you would do if it was yours?

Thanks so much for any advice!