Teamviewer 12 on Ubuntu 16.04 cannot login to my account

[Vesnog]

Greetings,

I have been using Teamviewer 12 on both Windows and Linux for some time; however after the data center transfer on 8-9.4.2017 I am no longer able to log into my account from Ubuntu 16.04. An error message saying, "The username or password you entered do not match any accounts on record" is displayed.

Things are fine on Windows and Android side, yet I also almost always use Ubuntu so this is a problem.  I am using the Debian package(teamviewer_12.0.76279_i386.deb) available on the official website as there is no repository to install it from. I would like to know if other people suffer from the same issue and possible remedies. Please see the attachment for a screenshot of the prroblem.

Thanks in advance