Please upgrade here. These earlier versions are no longer being updated and have security issues.
Bug: Plugin Not Found
This discussion is related to the Sanmyaku addon.
Reposted from Github
The addon could not be enabled because it generated a fatal error:
Plugin not found.
Vanilla Version Running:
Theme to display itself
Installing Procedure Followed:
Downloaded theme from https://open.vanillaforums.com/addon/sanmyaku-theme and pasted to the themes folder of my Vanilla installation.