Version 3.0.5
Greetings.
Wanting to activate the plugin, I see the message:
"The plugin does not have a valid header."
Just in case, here is a list of the installed plugins:
Admin Menu Post List - Eliot Akira
blueimp lightbox - Sebastian Tschan
Custom Content Shortcode - Eliot Akira
Enable Media Replace - Måns Jonasson
Excerpts for Pages - Joan Boluda
Featured Image Admin Thumb - Sean Hayes
Google Analytics by MonsterInsights - MonsterInsights
jcwp left right key navigation - jaschahal
Jetpack by WordPress.com - Automattic
Open exteal links in a new window - Kristian Risager Larsen
Page Links To - Mark Jaquith
Plugins List - David Artiss
Postmatic - WordPress Subscriptions & Commenting by Email - Postmatic
Post Snippets - Johan Steen
Post Types Order - Nsp Code
Pretty Link Lite - Caseproof
Publish & View - Launch Interactive
Regenerate Thumbnails - Alex Mills (Viper007Bond)
Rename wp-login.php - Ella Iseulde Van Dorpe
Shortcodes Ultimate - Vladimir Anokhin
Simply Exclude - Paul Menard
UpdraftPlus - Backup/Restore - UpdraftPlus.Com, DavidAnderson
Wordfence Security - Wordfence
WP-Bigfoot - Roger Stringer
WP-SCSS - Connect Think
WP Featherlight - WP Site Care