How to solved new account nextcloud

i’m new user owncloud then i have problems in my nextcloud log, someone can help me?
[index] Error: Exception: Call to undefined function OCA\Theming\mime_content_type() at <>

  1. /home/lmcreati/nextcloud.lm-creativeproject.com/lib/private/AppFramework/App.php line 126
    OC\AppFramework\Http\Dispatcher->dispatch(OCA\Theming\Controller\IconController {}, “getFavicon”)
  2. /home/lmcreati/nextcloud.lm-creativeproject.com/lib/private/AppFramework/Routing/RouteActionHandler.php line 47
    OC\AppFramework\App::main(“OCA\Theming\C … r”, “getFavicon”, OC\AppFramework\ … {}, {app: “settings” … "})
  3. <>
    OC\AppFramework\Routing\RouteActionHandler->__invoke({app: “settings” … "})
  4. /home/lmcreati/nextcloud.lm-creativeproject.com/lib/private/Route/Router.php line 297
    undefinedundefinedcall_user_func(OC\AppFramework\ … {}, {app: “settings” … "})
  5. /home/lmcreati/nextcloud.lm-creativeproject.com/lib/base.php line 1000
    OC\Route\Router->match("/apps/theming/favicon/settings")
  6. /home/lmcreati/nextcloud.lm-creativeproject.com/index.php line 42
    OC::handleRequest()

Does it cause any issues? Something doesn’t work?

has been solved. thanks