Fatal error: Uncaught Error: Call to a member function has() on null in /home/.sites/12/site7711441/web/wp-includes/l10n.php:1270
Stack trace:
#0 /home/.sites/12/site7711441/web/wp-includes/l10n.php(1305): _load_textdomain_just_in_time('polylang')
#1 /home/.sites/12/site7711441/web/wp-includes/l10n.php(187): get_translations_for_domain('polylang')
#2 /home/.sites/12/site7711441/web/wp-includes/l10n.php(299): translate('Strings transla...', 'polylang')
#3 /home/.sites/12/site7711441/web/wp-content/plugins/polylang/include/mo.php(21): __('Strings transla...', 'polylang')
#4 /home/.sites/12/site7711441/web/wp-content/plugins/polylang/include/base.php(125): PLL_MO->__construct()
#5 /home/.sites/12/site7711441/web/wp-includes/class-wp-hook.php(310): PLL_Base->load_strings_translations('de')
#6 /home/.sites/12/site7711441/web/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#7 /home/.sites/12/site7711441/web/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#8 /home/.sites/12/site7711441/web/wp-content/plugins/polylang/frontend/choose-lang.php(112): do_action('pll_language_de...', 'de', Object(PLL_Language))
#9 /home/.sites/12/site7711441/web/wp-content/plugins/polylang/frontend/choose-lang.php(217): PLL_Choose_Lang->set_language(Object(PLL_Language))
#10 /home/.sites/12/site7711441/web/wp-content/plugins/polylang/frontend/choose-lang-url.php(58): PLL_Choose_Lang->home_language()
#11 /home/.sites/12/site7711441/web/wp-content/plugins/polylang/frontend/choose-lang-url.php(34): PLL_Choose_Lang_Url->set_language_from_url()
#12 /home/.sites/12/site7711441/web/wp-content/plugins/polylang/frontend/frontend.php(109): PLL_Choose_Lang_Url->init()
#13 /home/.sites/12/site7711441/web/wp-content/plugins/polylang/include/class-polylang.php(251): PLL_Frontend->init()
#14 /home/.sites/12/site7711441/web/wp-includes/class-wp-hook.php(308): Polylang->init('')
#15 /home/.sites/12/site7711441/web/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array)
#16 /home/.sites/12/site7711441/web/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#17 /home/.sites/12/site7711441/web/wp-settings.php(423): do_action('plugins_loaded')
#18 /home/.sites/12/site7711441/web/wp-config.php(78): require_once('/home/.sites/12...')
#19 /home/.sites/12/site7711441/web/wp-load.php(37): require_once('/home/.sites/12...')
#20 /home/.sites/12/site7711441/web/wp-blog-header.php(13): require_once('/home/.sites/12...')
#21 /home/.sites/12/site7711441/web/index.php(17): require('/home/.sites/12...')
#22 {main}
  thrown in /home/.sites/12/site7711441/web/wp-includes/l10n.php on line 1270

Fatal error: Uncaught Error: Call to a member function set() on null in /home/.sites/12/site7711441/web/wp-includes/l10n.php:786
Stack trace:
#0 /home/.sites/12/site7711441/web/wp-includes/l10n.php(874): load_textdomain('default', '/home/.sites/12...', 'de_AT')
#1 /home/.sites/12/site7711441/web/wp-includes/class-wp-fatal-error-handler.php(47): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler->handle()
#3 {main}
  thrown in /home/.sites/12/site7711441/web/wp-includes/l10n.php on line 786