IGA 4.2 Login issues with LDAP user

I have done a fresh install on SLES 15 SP 6 server with IGA 4.2 and after the Installation I am able to login with the bootstrap admin . After logging with bootstrap admin I have ran the full collection and publishing but instead of bootstrap admin I am not able to login with any other users .I have added that user in Global Administrator as well but still not able to login.Whenever I am trying to login with other user getting an error page . Can someone help me on this ??