Has anyone had this before ?

What do i need to do to rectify this.
Thank you in advance.
Ad can't run: Update website URL(s)
This ad isn't running because it links to broken or malicious web pages.
Here's what you can do:
Edit the website URL(s) in your ad to confirm that the landing page does not have policy-breaching content. We'll show you policy info and tips to help you.
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