JS not loading and Error page

Hello,

I have 2 problems

1.  I can only access to question list http://domainname/index.php/questions/ … For all other pages, I have a 404 Error – Not found.
2. When I try to create a new question, it’s not possible to edit description (text area)

Also, my js file is not loading.

Please, how to fix it.

Kind regards,