Instagram Ads Disapproved Saying Community Guidelines Violation Despite Prior Approvals

I have previously gained significant visibility on Instagram, primarily through content that others have also promoted and advertised. However, lately, my ads are being disapproved, citing a violation of community guidelines. It's perplexing because others continue to advertise similar content without issues, and my ads were approved multiple times before. I don't understand why this problem has arisen now. I would appreciate it if this issue could be resolved.