Error in Ubuntu 20.04

[George]

Well after a bit of googling found this:

Empty Screen Launching Chromium-Browser Over X11 from Ubuntu 16 to OSX XQuartz

Maybe check your GPU or start without GPU:

Start Wappler GPU disabled

On rare occasions old video card drivers or old video cards can cause Wappler to show black screen or not start at all. To fix this, you can start Wappler without GPU usage. On MAC Quit Wappler completely from the tray, right click quit; Start the Terminal and type: open -a "Wappler.app" --args --disable-gpu On Windows Quit Wappler completely from the tray, right click quit; Right click your Wappler shortcut on the desktop/start menu and in the Target field, after the Wappler exe path add: …