How can I prevent errors from crashing my Node-RED flow?

Preventing errors often involves robust input validation within your nodes. Use `if` nodes or function nodes to check the data received from previous nodes and ensure it's in the expected format and range. Implement proper data type conversions. Consider using the `change` node to transform data and handle potential conversion errors gracefully. Implementing timeouts using the `function` node and `setTimeout` function can prevent infinite loops or blocking operations. Finally, use appropriate error handling like `catch` to gracefully manage unexpected exceptions.