Server initiated restore is not working on 0.5.0

Nothing was changed since previous version in the config.

using same template as before https://github.com/CoffeeITWorks/ansible_burpui_server/blob/master/templates/burpui.cfg.j2

burp: 2.0.54
burp-ui 0.5.0 
python: Python 2.7.6

• List the steps to reproduce your issue: Try to perform server initiated restore (see attachment).

• Any log that might help understand/reproduce the problem: burp-ui -vvvv, log:

---------------------------[2017-05-19 14:11:22,757]----------------------------
WARNING in resource.abort [/usr/local/lib/python2.7/dist-packages/burpui/api/custom/resource.py:70]:
[burpui.api.restore] 428: Sorry this method is not available with the current configuration