This issue is resolved in the most recent version of the addon. Do not make the changes below.
Clique is an addon for WoW which allows you to bind mouse buttons to actions or spells, such as binding left click to http://www.wowhead.com/spell=774/rejuvenation. This addon can be used in conjunction with other frame addons (e.g. Grid) and is extremely useful for healers. In the Legion beta, the addon is currently broken because it is trying to include the new nameplates as a frame, which it does not handle correctly. The fixes below will stop the error from happening in the beta.