Because bad uninstall code of another add-on, resource manager is ruined. Solution is to reinstall resource manager after I uninstall that bad add-on. Is it possible to keep data (uploaded) resources and connecting them with resource manager after reinstall. I have many resources uploaded and it will be 3 months job to upload them again. Also another question, if I am going to reinstall resource manager, I first have to uninstall any another add-on connected with resource manager or is just enough to disable them in admin control panel?