Please let me add some general thoughts about uploading WikiTree data to Gedbas. Generally, I would be very careful doing that. Besides the technical GEDCOM issues, and also some potential privacy issues, please consider that in Gedbas you will appear as the author of the data you uploaded. And you may be contacted by other researchers asking for details, sources or additional information regarding the data that you have uploaded. In WikiTree, however, you are not handling just your data, it is a colaborative work, and the profiles that you export by GEDCOM may have been edited by other WikiTree users as well. How are you going to handle that? Will you then take the authorship of that part of the data as well? Wouldn't it be easier, if you collect your research results locally (with a genealogy program that operates locally on your computer) and then share your work products to WikiTree to complement the global tree and also to Gedbas to support researchers there. But the source of anything you publish or upload should always be your own research data, and not something that you have taken or exported from another web site.
I am a contributor to WikiTree and to Gedbas, so you can contact me if you need further assistance.
Sincerely, Jochen from Germany