Answer:
It is likely that you are receiving the "Internal JSON-RPC error" message due to an issue with the network you are using. Depending on the type of network, the exact cause of the error may vary. For example, if you are using an Ethereum network, the error may be due to an issue with the network's JSON-RPC interface, such as an incorrect configuration or a network interruption. If you are using a different network, the cause of the error may be different. To determine the cause of the error, it is recommended to first check the network's documentation or contact the network's support team for assistance.
