Fixes a problem that caused an error when users opened the Subscription app. The update also restores the proper layout of date filters and action buttons on the subscription dashboard, making the screen usable again.

Issue: https://www.odoo.com/web#id=1871731&action=333&active_id=1278&model=project.task&view_type=form&menu_id=4720

-  when user clicks on the subscription app , it gives traceback