RHI install error

Hi guys

i have a problem with plugin installation.
When i install .rhi plugin file, the installation proceed correctly but when i open rhino appear a message that tell me “error loading plugin”.

in the plugin list i don’t see the plugin that i’ve installed, but there is in C:\user\appdata…plugin folder

thankyou so much

Which plugin is it?

speckle
i already write on speckle forum but i search other general info