@Marc Stridgen, I just updated our staging platform to 4.7.2 and get the same issue. All previous updates working fine, but this one throws out the same error:
[Template core/admin/global/globalTemplate is throwing an error. This theme may be out of date. Run the support tool in the AdminCP to restore the default theme.]
I am unable to access the Admin CP, I just get this error so am unable to restore the "default" theme. How can I get this issue resolved?
Update:
I closed all my browser tabs, cleared my browser cache and then managed to continue with the update, which did go fine.
Thanks
Hans