OpenSpecimen has a feature that allows only super admins to login into OpenSpecimen.
If a normal user (other than admin) tries to login when this option is enabled then it shows a warning message on login screen: “The system is locked down. Please contact the system administrator.”
The normal user can not view/edit this setting. It can be set up only by super admins.
Steps to Enable System Lockdown
Click on Settings → Administrative → System lockdown → Enable/Disable.
By default, the value is set to Disabled.
Click on ‘Enable’ button and ‘Save’.