Getting Mempool Full Error message ? Understand this and do the following This is as result of the various validators RAM size. Every node/validator has a memory limit for each transaction they process, during high transaction times, these memories get full because there are transactions queued ,waiting to be mined and added and then moved from the pool to the chain So some of these things may be experienced so long as the game continues, many are concurrently accessing the network simultaneously and its causing that and it's a good thing as it help improve the network So in order not to get your transaction stuck in the mempool, edit your gas and use a prioritized fee, a little above the fee and then confirm in the wallet