[X2Go-User] [X2go-User] x2go is disconnecting

Hello Sometime x2go lose connection and produce error: addons.productaddons WARN Failed downloading XML, status: 0, reason: error Warning from window manager: Log level 8: IA__gtk_widget_set_colormap: assertion 'GDK_IS_COLORMAP (colormap)' failed What can cause it and how to solve this problem? I didn't find anything accurate by googling :( server OS: redhat client OS: windows 7 desktop environment: mate x2go client version: 4.0.5 Qt version 4.8.6