Message logging gives json type error when inserting error content

[darpanjain420]

I want to use cloud logging element in message logging policy. I need to log a JSON object in a field let's say errorContent 

But it gives json error.

[dchiesa1]

To have a hope that someone might be able to help you, you'll need to provide lots more details. Example of the policy configuration, example of the message, the exact error you see, and so on.