TypeError: response.data is undefined. Analytics report page broken

Hi,
I’m using the last version (1.2.0) of the plugin.
In admin section, analytics report page, if I select a category from the category dropdown, banner list won’t update and I have this javascript error (from chrome console):

Uncaught TypeError: Cannot read property 'html' of undefined
   at Object.success (wp-bannerize-report.js?ver=4.7.3:126)
   at i (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils&ver=4.7.3:2)
   at Object.fireWith [as resolveWith] (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils&ver=4.7.3:2)
   at y (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils&ver=4.7.3:4)
   at XMLHttpRequest.c (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils&ver=4.7.3:4)

In ff console I get this error:

   15:49:13.985 TypeError: response.data is undefined 1 wp-bannerize-report.js:126:15
	getBannersList/< http://#######/wp-content/plugins/wp-bannerize-pro/public/js/wp-bannerize-report.js:126:15
	n.Callbacks/i http://#######/wp-admin/load-scripts.php:2:27444
	n.Callbacks/j.fireWith http://#######/wp-admin/load-scripts.php:2:28213
	y http://#######/wp-admin/load-scripts.php:4:22719
	.send/c http://#######/wp-admin/load-scripts.php:4:26925

So i cannot generate per banner reports.
I’ve tested this both on my production site, and with a clean local install.

Thanks,

Eduardo Silvi