Error: 
#<NoMethodError: undefined method `[]' for nil:NilClass>
c:/users/eg63/appdata/roaming/sketchup/sketchup 2023/sketchup/plugins/fredo6_!libfredo6/body_lib6materialbrowser.rbe:665:in `block (2 levels) in folder_sorting_all'
c:/users/eg63/appdata/roaming/sketchup/sketchup 2023/sketchup/plugins/fredo6_!libfredo6/body_lib6materialbrowser.rbe:665:in `sort!'
c:/users/eg63/appdata/roaming/sketchup/sketchup 2023/sketchup/plugins/fredo6_!libfredo6/body_lib6materialbrowser.rbe:665:in `block in folder_sorting_all'
c:/users/eg63/appdata/roaming/sketchup/sketchup 2023/sketchup/plugins/fredo6_!libfredo6/body_lib6materialbrowser.rbe:663:in `each'
c:/users/eg63/appdata/roaming/sketchup/sketchup 2023/sketchup/plugins/fredo6_!libfredo6/body_lib6materialbrowser.rbe:663:in `folder_sorting_all'
c:/users/eg63/appdata/roaming/sketchup/sketchup 2023/sketchup/plugins/fredo6_!libfredo6/body_lib6materialbrowser.rbe:889:in `matinfo_load_bulk_finish'
c:/users/eg63/appdata/roaming/sketchup/sketchup 2023/sketchup/plugins/fredo6_!libfredo6/body_lib6materialbrowser.rbe:914:in `matinfo_load_bulk'
c:/users/eg63/appdata/roaming/sketchup/sketchup 2023/sketchup/plugins/fredo6_!libfredo6/body_lib6materialbrowser.rbe:917:in `block in matinfo_load_bulk'