log in problem

[Jessiefer Montoya]

how to solve this log in problem?

[Flavio Javier Jarabeck]

Jessiefer Montoya:
how to solve this log in problem?

Maybe talking to, hmmm, your Broker?

[Sergey Golubev]

Jessiefer Montoya:
how to solve this log in problem?

I see from your image that it is not a login problem; it is "creating demo account with this broker" problem.
You can go to the broker's website and create an account directly from them.

[Antonio Bartolucci]

Jessiefer Montoya:
how to solve this log in problem?

You should try to make the login by searching for the server again. 

Of course, make sure you're not trying to access a Demo Account with live credentials and vice-versa.

Obviously all of this should be checked after making sure your connection is working. 

Anyway

https://my.fbs.eu/registration/

here's where you can open a demo account on FBS.