Invalid Client - Connect Token

[mrussorch]

Hi,
I have problem with {{url)/connect/token
The first part with redirect works fine with code but when I have $_REQUEST['code'] and try to call this function
$this->requestTokens($code)
$output is

"""
{
  "error": "invalid_client",
  "error_description": "The specified client credentials are invalid.",
  "error_uri": "https://documentation.openiddict.com/errors/ID2055"
}
""" // vendor\jumbojett\openid-connect-php\src\OpenIDConnectClient.php:1445

Note :
the post body in fetchUrl(...) is like this
"grant_type=authorization_code&code=**************************&redirect_uri=http%3A%2F%2F************"

Thank you very much

[DeepDiver1975]

https://documentation.openiddict.com/errors/ID2055 is WIP

Hard to tell what the IdP is expecting there. I doubt there will be much help from this community.
You might also want to reach out to the openiddict community.