Apache with mod_auth_openidc and Azure AD is not working

Question

I am setting up a legacy web application behind Apache.

I want to enable only authenticated users to access it and we are using Office 365 and we have Azure AD accounts.

We've decided that mod_auth_openidc can be a possible solution, but for some reason it is not working (yet;))

I am getting the following error from the module on URL "https://my.nice.server/secure/redirect_uri":

Error:

OpenID Connect Provider error: Error in handling response type.

This my Apache

configuration:

OIDCProviderMetadataURL https://login.microsoftonline.com/common/.well-known/openid-configuration 
OIDCClientID XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
OIDCClientSecret YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
OIDCRedirectURI https://my.nice.server/secure/redirect_uri
OIDCCryptoPassphrase ZZZZZZZZZZZZZZZZZZZZZZZ
OIDCResponseType id_token
OIDCResponseMode form_post

<Location />
    AuthType openid-connect
    Require valid-user
</Location>

I tried to look at the sources of mod_auth_openidc but I couldn't sort out...

Any ideas?