Nach dem letzten Update von UpdraftPlus kommt es bei WordPress 4.6 oder älter zu Fehlverhalten im Dashboard.

[25-Apr-2018 19:39:07 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function de_DE() in www/.../htdocs/wp-content/plugins/updraftplus/includes/class-updraft-dashboard-news.php:70
Stack trace:
#0 /www/.../htdocs/wp-content/plugins/updraftplus/includes/class-updraft-dashboard-news.php(52): Updraft_Dashboard_News->get_transient_name()
#1 /www/.../htdocs/wp-content/plugins/updraftplus/admin.php(394): Updraft_Dashboard_News->__construct('https://feeds.f...', 'https://updraft...', Array)
#2 /www/.../htdocs/wp-content/plugins/updraftplus/admin.php(21): UpdraftPlus_Admin->admin_init()
#3 /www/.../htdocs/wp-content/plugins/updraftplus/admin.php(8): UpdraftPlus_Admin->__construct()
#4 /www/.../htdocs/wp-content/plugins/updraftplus/class-updraftplus.php(416): include_once('/mnt/web219/a2/...')
#5 /www/.../htdocs/wp-includes/class-wp-hook.php(286): UpdraftPlus->admin_menu('')
#6 /www/.../htdocs/wp-includes/class in /www/.../htdocs/wp-content/plugins/updraftplus/includes/class-updraft-dashboard-news.php on line 70

Version 1.14.7 von UpdraftPlus fixed das Problem. Allerdings muss es manuell via FTP hochgeladen werden. Betroffene Kunden mit Remote-Wartung haben bereits die aktuelle, störungsfreie Version.

1.14.7 – 25/Apr/2018

FIX: Fix incompatibility with loading the dashboard on WP 4.6 and older. If you have this problem, then you cannot visit /wp-admin/ – you will need to update via another tool (e.g. if you have a multiple site management tool), or via FTP (download the https://downloads.wordpress.org/plugin/updraftplus.1.14.7.zip , unzip it on your PC, log in to your site via FTP into the folder wp-content/plugins, remove the existing folder ‚updraftplus‘ and then upload the unzipped ‚updraftplus‘ folder). Many apologies!

Das betroffene WordPress bei dem mir der Fehler unterkam, war übrigens eine aktuelle Version.