Formatting broken after changing an ad code?

[LemonGrenade]

It seems after changing the code on an advert, the formatting on the desktop version is completely broken. I cleared system cache which seemed to make it worse and now displays an older version (The forums title shows at the top which I removed in CSS)

Any ideas to get it working? It seems ok on mobile but again, looks like an older cached version.

[Jim M]

You can rebuild your theme files and cached items by going to ACP -> Support -> Clear System Caches. Unfortunately, I am not seeing any issues on your community