What is the reason for Firebase Messaging to generate an exception and only resume functioning after the server is restarted?

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There can be many reasons why Firebase Messaging may generate exceptions and require the server to be restarted to resume functioning. Some possible reasons include bugs in the code, compatibility issues with other software or hardware, connectivity issues with network or devices, memory leaks, or insufficient resources. These issues can cause the messaging service to crash or stop responding, which requires the server to be reset to restart the service. It is essential to ensure that the server is updated and maintained regularly to minimize the risk of such issues.