Georgiro, you didn't show the screen snapshot of the License Status.  Do you know who manages that license server?

Do you want to get the full license working or do you want to use the limited Student license?

If you want to build a model with the limits of bodies<50, faces<300 and nodes or elements<32,000 then you can download the free ANSYS Student 19.1 installation using the DOWNLOAD FREE SOFTWARE button at the top of this page.  It has a built-in license and you don't have to connect with your old license server. If you go this route, you must clean all the old ANSYS off your computer.

Let me know what direction you want to go.