XF 2.1 Blank space under node list

[sleepyhead]

Hi,
I hope this is not a stupid question, but there is a large empty space at the bottom of all our forum pages and I cannot figure out how to remove it. The site is https://fishingmagic.com/forums/
If you could direct me to how to reduce this space I would really appreciate it! Thanks.

 

[beerForo]

style="margin:5px auto 15px auto; text-align:center; width:100%; height:3000px;"

Perhaps the 3000

 

[sleepyhead]

style="margin:5px auto 15px auto; text-align:center; width:100%; height:3000px;"

Perhaps the 3000

Thanks, I think that is an ad template that our ad company put in. I am not sure if I've done it right but I've changed the height to 700px and it seems to have improved. Thankyou!