LogViewPlus is built with .Net 4.5 and your plugin is built using .Net 4.6. If your colleagues do not have .Net 4.6 or higher installed that might be causing the problem (LogViewPlus runs fine, but cannot load a 4.6 library). Can you please try rebuilding and deploying in .Net 4.5?
As I suspected, there is a try catch around loading plugins. There is error reporting built-in but, unfortunately, this appears to be broken. I have fixed this for the next release. I apologize for the confusion this is causing.
Aside from those issues, your plugin appears to be fine and is loading on my machine.
Thanks for reporting this issue. Please let me know if you continue to have problems after building in .Net 4.5.