Self hosted --collab share error

[zino1337]

Hi cloud9 community,
hi github,

this is my first post on github ever so please let me know if I can improve my bug reporting.
I'm using the latest cloud9 self hosted version on my Debian server and wanted to enable the Collaboration feature by passing --collab to the server-js as a start parameter but I get the following error in console when trying to use the share function:

VM17:1 GET https://zinomedia.de:8080/api/collab/0/access_info?access_token=token 404 (Not Found)
http-xhr.js:126 HTTP error 404: Cannot GET /api/collab/0/access_info?access_token=token

The following message is displayed in my browser:
The server returned an error
Cannot PATCH /api/projects/0/?access_token=token

---

A reproducible test case or series of steps:
Start Cloud9 with --collab and --debug option on a self hosted version and watch console output
The version of our code being used:
Latest cloud9 core
Any modifications you've made relevant to the bug:
Nothing