User warning: Trying to overwrite a cache redirect for "entity_view:block:sandbox_mainnavigation:[languages:language_interface]=ar:[route.menu_active_trails:main]=menu_trail.main|menu_link_content:a7e9c4c2-8d23-4ff5-990e-e8002da8f710|menu_link_content:dc8feac0-02ec-4625-9874-518e0abcd920|menu_link_content:544bdef2-df19-44fc-80d4-f33d1c51dd90|:[theme]=sandbox:[user.permissions]=7aa270a6abe4761095f8c46b5bf5db9c3233866bbf4df9dbad7e265a9b08b6e3" with one that has nothing in common, old one at address "languages:language_interface, route.menu_active_trails:main, theme, user.permissions" was pointing to "url.query_args:language", new one points to "languages:language_url". in Drupal\Core\Cache\VariationCache->set() (line 238 of core/lib/Drupal/Core/Cache/VariationCache.php).