Why do I get the error "You reached maximum login sessions. Logout earlier sessions and try again"?

Why do I get the error "You reached maximum login sessions. Logout earlier sessions and try again"?

At present, there is no feature to track the user sessions. Alternatively, if such errors are encountered, modify the LOGIN_COUNT field from the ADMIN_MST USER table in admin db to release the sessions. As a quick workaround, we can also increase the login count in 'arc.properties' file to say 50 and do the recache changes to take into effect. But report the issue to support to have it corrected on a permanent basis for your ARC environment.