This post is an official statements from @rarible
"Dear Rarible users,
We are in the process of releasing some cool technical updates which will allow new amazing features we are sure you will love. However, this release has caused several notable issues which are currently affecting our website. We are aware of these issues and are busily working on resolving them.
There is currently a delay between events happening on chain and being updated on Rarible. As always, all your assets and funds are safe as Rarible is a non-custodial platform. Just keep in mind one important rule you always need to follow, DO NOT proceed with a transaction if your wallet warns you it will encounter an error.
We will keep you updated as to the progress of resolving all the issues.