Error 404 admin menu after instal Fabrik

[Mari]

Hi!
Reporting installation error Fabrik.
J! 3.2.3 Fabrik 3.1

A use case:
1 Template Administrator other than isis
2 Installation of Fabrik
3 Menu> Fabrik> form (or other)
4 Error 404

solution:

For the first time Fabrik after inastalacji set the default administrator template for isis.

Best Regards!
P.S.
Congratulations on a good idea and present work.