guys!

I tried to solve this kata and ran into a problem

https://www.codewars.com/kata/593b1909e68ff627c9000186/train/javascript

  function nicknameGenerator(name){
   if (name.length < 4) {
   test = "Error: Name too short";
   return test;
 } else if (name.length > 4 && name[3] != 'a' || 'e' || 'i' || 'o' || 'u') {
     return name.substr(0, 3); 
   }      else if (name.length > 4 && name[4] == 'a' || 'e' || 'i' || 'o' || 'u')  {
          return name.substr(0, 4);
         } 
   }

both 'else if' parts work great separately from each other. but in the general code only one works, what am I doing wrong? also, if you rearrange the part "Error: Name too short" to the end, then it will also not work :с

I'm just starting to learn so please be patient with me please :)