Duplicate a newsletter…

Hi,

I could not duplicate or delete my previous newsletters any more. I directly arrive on a 404 page when I try. Only the “preview” feature still works.

That’s the first time I get this trouble. I don’t have used Mailpoet since my last update (2.6.19), I guess my problem comes from it.

I did not install new plugins from my last Mailpoet update too.

Thanks for your help 🙂

Vincent

https://wordpress.org/plugins/wysija-newsletters/