Debug a txn hash throwing an error

[ryestew]

Describe the bug
I tried to connect to mainnet -but could not - so I'm keeping this example on Base. Deploy & Run is connected to Base and I inputted the basescan API key in the setting tab. Then I selected a verified contract. Then I copied a txn with this contract and pasted it into the debugger. I get the error below.

Expected behavior
The contract should load and I should be able to walk through the txn.

Screenshots

After some delay of minutes, I got connected to mainnet. With the wrong APi key in settings (input for Basescan) it doesn't work. When I use the correct api key, it does work.

So could this be just a problem on basescan?

The error in the toaster needs to be more clear when connecting using the wrong API key
What is NOTOK?

Desktop (please complete the following information):

• OS: [e.g. Windows, Linux or MacOS]
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• Version: [e.g. 22]

Additional context
Add any other context about the problem here.