Parse error: syntax error, unexpected identifier "nn" in /home/wavelabl/public_html/hochegger-klippitz/wp-includes/theme.php on line 1

Fatal error: Uncaught Error: Call to a member function set() on null in /home/wavelabl/public_html/hochegger-klippitz/wp-includes/l10n.php:857 Stack trace: #0 /home/wavelabl/public_html/hochegger-klippitz/wp-includes/l10n.php(960): load_textdomain('default', '/home/wavelabl/...', 'de_DE') #1 /home/wavelabl/public_html/hochegger-klippitz/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in /home/wavelabl/public_html/hochegger-klippitz/wp-includes/l10n.php on line 857