Comment 1 for bug 1757225

 After reinstall the freezer components, compatible with pike, the problem has been fixed:

 freezer (5.0.1.dev8)
 freezer-api (5.0.1.dev2)
 freezer-dr (5.0.1.dev1)
 freezer-web-ui (6.0.1.dev7)
 python-freezerclient (1.6.0)

On Ubuntu 16.04.1 take care with the compatibility bedween Ubuntu python pakages managed
 by dpkg and the pakages managed by pip. Follow de requeriments pakages version for every freezer
 component (Ej.: freezer$ requirements.txt)