When Tori walks behind Festus's truck, you see her foot stop moving from under the truck while Cat and André talk. When the camera goes on Tori, she keeps walking like she only came around the corner of the truck.
When everyone goes to the chancellor to try and get Tori out of jail, André has a large lump on his neck because of the bite from the vampire moth. But in the next scene, the lump is gone, and since there is no mention of it from that point on, it might be cured.
When Robbie crawls into bed with the girls, he comes up from the bottom. But if you look closely, the blankets appear to be tucked in. Also, Trina and Cat move apart right before Robbie crawls up, even though they were closer before then.
Tori's high heel flung off of her foot to the chancellor. However, Tori's heel is clearly seen to have a strap on it, so even if she could kick it off, it probably wouldn't hit far enough to the chancellor.
Tori first got their keys to the room so that they couldn't have got into their rooms yet, But Trina and Robbie said that they've seen their rooms. However, Tori didn't give them their keys yet or maybe they got their room keys first.
In order to call from inside North America to outside of North America, you first have to dial 011 then a country code for the country being called, before dialing the local number. When Festus is giving Tori his brother's number in Yerba, it doesn't start with the required 011.