Hi Team
Just launched the upgrade from 4.7.2.1 to 4.7.3 and update was running, when suddenly the page blanked out:
https://xxx/admin/?app=core&module=system&controller=upgrade
How do i proceed now?
Update in progress
We're sorry, this web site is unavailable while an update is in progress.
You can try again by clicking the button below, or try again later.
Try again Site Owner
This message means an upgrade is in progress. If this is not correct, try visiting the upgrade process again (usually /admin/upgrade) and choose either continue or restart. If the upgrade shows nothing to upgrade, visit the AdminCP and run the Support tool. You can also contact Invision Community support for assistance.