Thread:Project:Support desk/Mantle returns error upgrading extension from 1.24 to 1.25 branch in Mediawiki 1.25.1 (2)

In mobile view on my wiki: wiki.gamepaduniverse.com the mobile view isn't display correctly. The search box doesn't look right, the site notification is now displayed at top, and there is no edit bar anymore. How to correct?

My Mobile Frontend extension and Mantle extension are up-to-date at version 1.25.

I am using Mediawiki 1.25.1 and Windows Server 2012 R2