Ok that was quick, I believe I found a solution, but back up your site before trying just in case 🙂
First deactivate the plugin (don’t worry all of your snippets will be saved).
Then try to update the plugin… it should work.
Finally reactivate.
By any chance are you using the OptimizePress theme or plugin on your site? I am getting a similar message and OptimizePress has confirmed to me that the two plugins have a conflict. Still working on finding a solution… if anyone knows one I would love to know and I will be back to post if I find one!
