I've created a new project base on template(1024x768), then i added a image(.png) as layer, and another layer with text. then I've selected an empty area rectangle selection tool. then I've tried to stroke that  selected area with "stroke with a paint tool"(paintbrush). and when i click on the stroke button the program crashes. I've tried several times and it's always the same.

The log says: 
***@***-laptop:~$ gimp

(gimp:2371): Gtk-CRITICAL **: gtk_icon_theme_lookup_by_gicon: assertion `G_IS_ICON (icon)' failed

(gimp:2371): Gtk-CRITICAL **: gtk_icon_info_load_icon: assertion `icon_info != NULL' failed

(gimp:2371): Gimp-Paint-CRITICAL **: gimp_paint_core_stroke_boundary: assertion `bound_segs != NULL && n_bound_segs > 0' failed

(script-fu:2374): LibGimpBase-WARNING **: script-fu: gimp_wire_read(): error
Segmentation fault