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