Hello.. I am facing a problem from API key error (501)..how to solve the issue.. give me a solution

Need help
1

Hello… I am facing a problem from API key error (501)…how to solve the issue… give me a solution

2

Give some more informations?!
API Connector setup, API documentation link… How you have set your workflow/actions…

3

the service phone number verification-Sendotp just returned an error (HTTP 404). Please contact the plugin author directly for feedback. Raw error: f"start&quot::"error""code":404;"message":& quot;application not found":"request_id"YyuGjrbESRWOpflzXfkwjw_31sanitized17001santized123")

4

x -as -api key(shared headers) d563c6e5d412dfccc89a74d1d3456adf

5

So what I undersand is that you are using a plugin?
And now, you don’t have the same error code? 404 mean that your endpoint doesn’t exist.