Cant Login Demo Server 4

Hello,
when I try to login Demo Server 4
With
User: demo att demo.com
Password: demo
There is directly an error massage.

Please change att to @ at user. I cant post here when I write the mail with @

Can you please provide a link where you found that login and password.

I dont find it, I type it in in the past years to see how an new update look.
These access data are simply suitable for a demo server. demo demo demo .... :-)

https://demo4.traccar.org/
User: demo att demo.com
Password: demo

Error massage:
Error: Invalid LngLat latitude value: must be between -90 and 90
    at new Lc (https://demo4.traccar.org/static/js/main.6cd3a572.js:2:1126842)
    at Lc.convert (https://demo4.traccar.org/static/js/main.6cd3a572.js:2:1127327)
    at Map.jumpTo (https://demo4.traccar.org/static/js/main.6cd3a572.js:2:1524689)
    at https://demo4.traccar.org/static/js/main.6cd3a572.js:128:268505
    at il (https://demo4.traccar.org/static/js/main.6cd3a572.js:2:712124)
    at Tc (https://demo4.traccar.org/static/js/main.6cd3a572.js:2:732351)
    at https://demo4.traccar.org/static/js/main.6cd3a572.js:2:728941
    at x (https://demo4.traccar.org/static/js/main.6cd3a572.js:2:836432)
    at MessagePort.C (https://demo4.traccar.org/static/js/main.6cd3a572.js:2:836966)

You should not share credentials online. I have disabled the user to avoid any abuse.

Can you check the error ?

Sorry, but we don't provide support for demo servers. But from what it looks like, probably the location reported by your device is out of a valid range.

I understand, but the error massage is blocking the login. It is possible the show an error with one device at another way so a login is still possible?

What is the use case?