Can't login after reverse proxy from apache

After the reverse proxy is activated, unable to login. login page shows incorrect credentials.
apache conf :
http_conf

grafana conf :

adding grafana login page error:

Is the reverse proxy on the same server as Grafana? If not I would try to connect with the local grafana server ip and port and verify you credentials are working as expected.

NVM… see localhost .

yes reverse proxy is on same server.