As you can see the screenshot only gives us limited information. When posting logs or code it is much better to copy/paste the text here. See this post for details of how to do that - How to share code or flow json.
However it can be seen that the last error comes from an RBE node with the id shown. That suggests that you have configured an RBE node to watch a property currentValue of a message property that does not exist.
That log does not show node-red crashing however.
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