array_merge() does not accept unknown named parameters
Backtrace from Exception
In /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/widgets.php [line 1265]:

  1. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/widgets.php [line 1265] calling array_merge()
  2. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/widgets.php [line 1220] calling retrieve_widgets()
  3. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/class-wp-hook.php [line 289] calling _wp_sidebars_changed()
  4. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/class-wp-hook.php [line 311] calling apply_filters()
  5. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/plugin.php [line 478] calling do_action()
  6. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/theme.php [line 3267] calling do_action()
  7. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/class-wp-hook.php [line 287] calling check_theme_switched()
  8. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/class-wp-hook.php [line 311] calling apply_filters()
  9. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-includes/plugin.php [line 478] calling do_action()
  10. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-settings.php [line 547] calling do_action()
  11. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-config.php [line 133] calling require_once()
  12. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-load.php [line 37] calling require_once()
  13. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/wp-blog-header.php [line 13] calling require_once()
  14. /is/htdocs/wp10636229_MEYRILPH26/www/wp-neu/index.php [line 17] calling require()