Keycloak 18.0.2, public IP, admin login, HTTPS required

I use Almalinux 8.5 and download Keycloak 18.02.zip and extract it /opt folder and run these commands

./kc.sh build
./kc.sh start-dev 

I see login page and when I want enter my username and password for use keycloak it redirect me to another page and I see error about HTTPS required and I can not login and use it.
My server has only public IP,
please help me to solve this problem.
I want run keycloak on development mode for testing and will move to production mode.