Fix Non-Showing Google Ad

The Google ad slot on my website has suddenly stopped rendering, and the empty space it leaves is throwing off the layout on phones and tablets. I need someone who can jump in, pinpoint why the ad isn’t displaying, and restore proper mobile responsiveness without introducing new glitches... (Budget: ₹600 - ₹1500 INR, Jobs: CSS, Google Ads, HTML, JavaScript, PHP, Web Design, Web Development, Website Optimization)