I was created functional connection type to SOURCETABLE with column Id, title. Afterward, the name of column title was changed to Tytul while the LDSD connection type was mapped to Id and title. When I tried edit the connection type in order to add the Tytul attribute instead of the oldone title (the new column appears on the left box where the not mapped columns can be seen, while the non-existing attribut title is still available in the right box, where the already mapped attributes are shown), the connection cann't be neither saved nor deleted.
No data import is created for this connection type.
Any idea how to delete the connection type?