Is PrestaShop 1.7 is supported

Hello,
I found the plugin was successfully installed in PS 1.7.
Is this plugin is working only with features?

[gmisterk]

hi, i have version 1.7.6 and it don't work.
After install, i see nothing in backoffice. (for info, i use classic theme)

I tried to downgrade to 1.7.0 but still same problem.
Anybody is working with 1.7.6 ?