ERROR! The Reactor plugin core version and UI version do not agree. This may cause errors or corrupt your ReactorSensor configuration. Please hard-reload your browser and try again (how?). If you have installed hotfix patches, you may not have successfully installed all required files. Expected 19125 got 0.
I saw this once too when I updated the plugin from github.
Hard-reload means to refresh the browser cache using this method:
This cleared the error message for me.
1 Like