peterlockhart

Thanks, Jay. That seems to have done the trick!

It does seem odd that this is the only plugin that I’m having an issue and that so many other people are reporting it here, but at least there’s a workaround for now.

I have the same problem:
“The plugin does not have a valid header.” error after clicking “Activate”

I had this same problem tonight. Just sent an old post out to my entire list because I updated the category not knowing this would trigger a send.