Here are some tips from my end:
Review Your Gig: Check for any recent changes or updates that might have affected your gig's performance.
Improve Gig Performance: Focus on delivering quality work and maintaining a high level of client satisfaction to improve your gig's ranking.
Optimize Keywords: Revisit your gig's title, description, and tags to ensure they include relevant and high-ranking keywords.
Stay Active: Regularly update your gigs, respond promptly to messages, and actively engage with buyers to stay relevant on the Fiverr platform.
Seek Support: If you're unsure about the drop, you can contact Fiverr's support to inquire about any specific issues affecting your gig's visibility.