Maintenance Mode Locked me out of Vantage
I have all main Apptheme themes and had them installed by our IT. I immediately put them in maintenance mode so they can be developed and unseen to the public. All worked fine with the exception of Vantage - I am now locked out of even admin and can't access the site at all. How do I gain access to the site again? This must be a glitch in the design - I can't believe the standard Maintenance Mode 5.4 can cause this. Please advise.