Console errors when calling Custom App interface method

I am currently using the interface method of my Front-end app to display an error message to the user in case an error occurs. The error message is displayed correctly

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but after the notification pops up, I see multiple error message in the browser console:

Can anyone tell me why calling the interface methods results in these errors?

Hi @chrism ,

Greetings!

Could you please provide more details regarding the issue, or share a snippet of how you called the interface method? That would help us assist you further.

Awaiting your prompt response.

Thank you.