I am getting a string of warnings if the plugin is reactivated after being deactivated.
It doesn't happen upon initial installation and activation.
Here is a link to a pastie, as the error message is rather long, and consists of a variety of different ones.
The site can't can't be accessed from outside so don't bother trying to visit the link. If it is necessary I can set up a clone at Digital Ocean, but I am hoping you might be able recognise what is happening from the error log.