What is the difference between a JSON RPC error and other MetaMask error types?

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What is the difference between a JSON RPC error and other MetaMask error types?
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A JSON RPC error specifically arises from issues with the communication protocol between MetaMask and the Ethereum network. Other MetaMask error types might involve wallet issues, network connectivity problems, or problems with specific blockchain contracts. The JSON RPC error usually points to a problem with how data is being exchanged.