I am experiencing an issue with ads that keep appearing during the homework section. When the students click on the first question, the ad appears. please help thank you 

Hello,
Sorry for the confusion.
I can confirm your account has a pending order, it appears its payment didn't go through. Since there is not an active subscription then the ads might appear on your account. For better assistance, please contact us at [email protected] and we'll do our best to help you out.
Cheers.