Shows empty results and no errors

[bluescreen]

I'm trying to use your ACP test suite to validate our implementation.

Unfortunately i always get always empty results

acp-test run

results in
Passed: 0 | Failed: 0 | Total: 0 (0%)

Also the verbose mode is helping at all.

It seems the test are not run properly. I added the config.

{
  "checkoutUrl": "http://localhost:3001",
  "apiKey": "API_KEY",
  "testType": "simple",
  "outputFormat": "json"
}

What am i doing wrong?

Thanks in advance