Getting error after clicking next to see Map to item fields tab with Custom JSON data loader

Hi all, I created and tested a custom JSON data loader with CLI and everything works well. I uploaded the loader to test in UI but I get an error in the browsers preview request’s response. I checked my mappings.json file and other settings. but everything look well. Is there any log file to check errors for this situation?

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Hi,
Through the Top Right dropdown Menu, under Server,


you can find the logs when clicking on Log Files in the left panel.

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