Fatal error: Uncaught Error: Call to a member function switch_to_locale() on null in /www/htdocs/w015c4a3/_websites/barbara-nicolai.com/wp-includes/l10n.php:1679 Stack trace: #0 /www/htdocs/w015c4a3/_websites/barbara-nicolai.com/wp-admin/includes/misc.php(132): switch_to_locale('de_DE') #1 /www/htdocs/w015c4a3/_websites/barbara-nicolai.com/wp-content/plugins/shortpixel-image-optimiser/class/Tools.php(285): insert_with_markers('/www/htdocs/w01...', 'ShortPixelWebp', Array) #2 /www/htdocs/w015c4a3/_websites/barbara-nicolai.com/wp-content/plugins/shortpixel-image-optimiser/class/Helper/InstallHelper.php(44): ShortPixelTools::alterHtaccess(false, false) #3 /www/htdocs/w015c4a3/_websites/barbara-nicolai.com/wp-content/plugins/shortpixel-image-optimiser/class/Helper/InstallHelper.php(18): ShortPixel\Helper\InstallHelper::deactivatePlugin() #4 /www/htdocs/w015c4a3/_websites/barbara-nicolai.com/wp-content/plugins/shortpixel-image-optimiser/shortpixel-plugin.php(683): ShortPixel\Helper\InstallHelper::activatePlugin() #5 /www/htdoc in /www/htdocs/w015c4a3/_websites/barbara-nicolai.com/wp-includes/l10n.php on line 1679