Thank you Mike. I guess I will rather need a kind of social network users email system…
Thanks, Joe. Finally, however, I’ll try and get along with 2.2.12 on one site only, as you recommended.
Same thing happened to my website. Not knowing how to get access again to my site, I removed the whole my-calendar folder from wp-content/plugins and everything seems ok, except I would like to have my-calendar again but I can only find download for 2.2.12. Where can I get 2.2.9?