title: GitLab: "Something went wrong during merge pre-receive hook" on WebSite
body: <p>This is my situation:</p>
  <p>GitLab:</p>
  <blockquote>
  <p>-----------develop</p>
  <p>|</p>
  <p>|------develop-mycompany</p>
  <p>|</p>
  <p>|--mybranch</p>
  </blockquote>
  <p>I'm trying to merge mybranch into develop-mycompany by merge-request on the website.</p>
  <p>It's a rule of my company so I have to do this way.</p>
  <p>I haven't aprrobals so I can do the merge request.</p>
  <p><strong>It's the first time that I see this issue. I tried a lot of solutions on internet but don't solve my problem.</strong></p>
  <p>Here a capture:</p>
  <p><a href="https://i.stack.imgur.com/J9S6x.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/J9S6x.png" alt="mygitlab" /></a></p>
  <p>Thank you for your help!</p>