Skype for Business crashes after input of correct login/pass

Hi

It on a Huawei Mate 9 pro.
I input my correct credentials and after the last input (password) on our company OFfice365 login site, SFB on android closes. If I input an incorrect password it stays on the site and I'm asked to type the correct pass.

Have triede to uninstall, reboot and reinstall.
Have uninstalled the Outlook client, and the SFB and reboot and reinstall. But with same result.

Can anyone help? I would be sorry if I had to reset my phone and start all over.