ERROR (invalid-token). At the stage of receiving an authorization code

[web-diy]

The WP Openid Connect Generic Client plugin gives the error ERROR (invalid-token): Invalid token. Although I can see in the browser, the request header is correct and contains the authorization code:

State 302 action openid-connect-authorize code d1YfxlR_aiKTdCNOM30j6IeYD6U2_DmyP2zfq8UAXng state c80c10d64e2b34243d3dc08222c83e27 this is http://localhost:80

https://test.aywine.ru/wp-admin/admin-ajax.php?action=openid-connect-authorize&code=d1YfxlR_aiKTdCNOM30j6IeYD6U2_DmyP2zfq8UAXng&state=c80c10d64e2b34243d3dc08222c83e27&iss=http%3A%2F%2Flocalhost%3A80)

Please help, maybe someone has already encountered this error? Thanks in advance!