In the ext_localconfig.php in Line 65 and 71 you use the SvgIconProvider for a .png file (Extension.png). As a result, the "new content element" dialog in the backend no longer works!
You should use the BitmapIconProvider instead; or switch back to a .svg icon again.
In the ext_localconfig.php in Line 65 and 71 you use the SvgIconProvider for a .png file (Extension.png). As a result, the "new content element" dialog in the backend no longer works! You should use the BitmapIconProvider instead; or switch back to a .svg icon again.