How to solve "Application not exist" in Odnoklassniki API request calculator?

Question

Classmates

The task is to create Oauth authorization on the site using classmates + some manipulations with the API.
I registered an external application in it, I registered everything that was needed: I

started integrating authorization on the site - I get a token. But when I try to access the users.getCurrentUser method, the error "101 Application not exist" occurs. I tried to use the API request calculator,

but it also generates a link that produces:

<ns2:error_response>
  <error_code>101</error_code>
  <error_msg>PARAM_API_KEY : Application not exist</error_msg>
</ns2:error_response>

What could be the problem?

Answer 1

application_key - the public key of the application, this is written on the calculator page.