I'm sorry to hear that your gigs are no longer appearing in search results. There are a few potential reasons for this sudden change:
Changes to the Fiverr search algorithm. Fiverr's search algorithm is constantly being updated, so it's possible that your gigs are no longer ranking as high as they were before.
Increased competition in your gig category. If there are more sellers offering similar services to yours, it could be harder for your gigs to stand out in the search results.
Technical issues on Fiverr's end. It's also possible that there are technical issues on Fiverr's end that are preventing your gigs from showing up in search results