An error occurred while validating the integration authorization

yes, we’ve checked oAuth settings and nothing has changed. Redirect url, scopes are same as in app settings. Now i see that when trying to integrate i’m getting agreement screen but ther is no chance to click on it because hubspot redirects that page in a second so maybe this is a problem.
So randomly we’re getting agreement screen and validating error.
Please check video

Our install URL:
https://app.hubspot.com/oauth/authorize?response_type=code&client_id=CLIENT_ID&redirect_uri=https://app.livewebinar.com%2Fintegrations%2Fautomation%2Fcallback%3Fhubspot_authorized%3D1&scope=crm.lists.read%20crm.objects.contacts.read%20crm.objects.contacts.write%20crm.lists.write%20crm.objects.companies.read%20crm.objects.marketing_events.read%20crm.objects.marketing_events.write