Help me pls :'(
I cant even log in in web interface. im receiving an error "Invalid request! No data was saved.". i dont know reasons of this error message. its unknown message driving me crazy :o.
roundcube installed on Centos 6.8 and nginx + PHP-FPM.
php 5.6
Have you enabled the debug logs and checked them?
You may also want to look at the web server logs.