Camunda optimize login error

Hi everyone
I have build and run the project at the below link successfully

this project has the default admin user with full access of camunda web apps.
now i have run camunda optimize and in login page, when i enter admin user and password, i get following error :
“Could not authenticate you, please check your credentials.”
i created another user with full access in camunda admin webapp, but still i can not login to optimize,
i would appreciate any help in advance for overcoming this issue .