It looks like you still have the protective plastic coating on the bottom of the tent. Peel that off and the bottom should look much better. Some people glue a mat or plate under the ladder to protect it, I haven't gotten around to doing that so I just be careful and lift the ladder slightly while extending it.
I just fixed a similar problem with the sides on mine. The tent body might have shifted in the tracks and is causing it to pull out of the sides. To fix it you need to shift the tent beading little by little, working your way around until you can slip it back into the groove, the shift it all back until it aligned. You'll probably need to do top and bottom at the same time while it's folded. Takes longer to explain than to do it.