title: Can not create a new database by using pgadmin4
body: <p>I was trying to create a new database on pgadmin4 on my Ubuntu computer, but I got two errors.</p>
  
  <p>The first one: "Error saving properties";</p>
  
  <p>The second one: "Error retrieving the information - INTERNAL SERVER ERROR".</p>
  
  <p>I have been looking for an answer and I found nothing but tutorials to create without error.
  I am starting to learn SQL and need to get it working as soon as possible to carry on my course.</p>
  
  <p><img src="https://i.stack.imgur.com/GvY5i.png" alt="error"></p>
  
  <p><img src="https://i.stack.imgur.com/Iq1Yr.png" alt="details"></p>
  
  <p>------------OS------------</p>
  
  <p>PostgreSQL 10</p>
  
  <p>pgAdmin 4</p>
  
  <p>Ubuntu 16.04 LTS 64-bit</p>