You may find it strange that after being active for almost 13 years, I am still requesting help regarding crypto wallet. But I badly need some advice at the moment.

I created a wallet in Blockchain.com back in 2012. Ever since that date, I have kept my coins on that wallet. But in recent times Blockchain guys are making a lot of updates to their wallet, which is making it difficult for me to use their wallet.

I logged in to their wallet today and found that none of the funds are showing. I panicked and then emailed their support. However, after some time I found that the coins are safe. They have just been moved to the "imported wallets" section. But there is a warning message saying that this particular wallet is not backed up by recovery phrase and therefore I should move my coins to "DeFi wallet".

What should I do now? Should I move the coins to their DeFi wallet? They are terming the old wallet as "private key wallet". I have the private key for this wallet with me. Should I just keep my coins in the old wallet? Which one is safer?