ideal don't work anymore

-- HikaShop version -- : 3.01
-- Joomla version -- : 3.6.5
-- Browser(s) name and version -- : chrome, edge

Hello,
Ideal don't work anymore.
And if I try to look in the Idealmenu I get the following message:

Fout

Er heeft zich een fout voorgedaan.
0 Call to a member function display() on null
Terug naar controlepaneel

Met vriendelijke groet

Hello,

Thanks for the report but unfortunately, the ideal plugin is not developed by our team.
You have to contact directly the developer support.

Regards,