Need Answer

Problem launching Modeler


This morning I tried to update my Modeler version so I had to uninstall myold version to install version 3.7 and now when I launch it, it requests that I register but the tab remains white (see the attached file).

Problem is i can't register and if I close the tab, it automatically closes Modeler so I can't use it whatever I do. I've tried rebooting computer and uninstall/reinstall several times but nothing changed...

Would you have a solution ?

Thanks a lot.