Core dump with logo upload in settings on Linux

[burnbrigther]

Trying to upload a new logo via the webgui and app.py pukes.

1. Webui>Setttings>Main Config>Application Logo>Upload Logo
2. Add your own logo in the dialog
3. BURP

INFO:     127.0.0.1:48348 - "POST /upload_logo HTTP/1.1" 200 OK
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: linuxfb, minimal, offscreen, vnc, webgl, xcb.

./linux_run.sh: line 46: 1270586 Aborted                 (core dumped) python app.py "$@"