Wallet Crashes when Collectible's underlying contract doesn't exist

[Caruso33]

Problem
The wallets ( testnet.mynearwallet.com & wallet.testnet.near.org) crash when it looks for collectibles which underlying contract doesn't exist anymore:

Failed to load NFT for demo_project_test12.part_factory.groundone.testnet Error: [-32000] Server error: account demo_project_test12.part_factory.groundone.testnet does not exist while viewing
    at json-rpc-provider.js:329:31
    at async Object.e [as default] (exponential-backoff.js:7:1)
    at async y.sendJsonRpc (json-rpc-provider.js:304:15)
    at async y.query (json-rpc-provider.js:116:13)
    at async A.viewFunction (account.js:386:15)

It results in a blank page. The wallet crashes completely.

Expected Behavior
I guess skip collectibles which can't be queried from the original contract.

Steps to reproduce

1. Create a nft contract
2. Mint tokens on address
3. Delete contract account
4. Check your wallet