I tried to install 1.0 beta version of WP-Tiles. Installation is successful, but activation returns the following error:
Fatal error: Class 'WPTiles\WPTiles\WPTiles' not found in /web/htdocs/www.albertodolfi.com/home/wp-content/plugins/wp-tiles/src/WPTiles/Legacy.php on line 126
I point out that just before 1.0 I had installed the stable version, but as soon as I noticed that a beta version was available I deactivated the old one, then I uninstalled it and only afterwards I tried to install the beta version.
I have also just updated PHP version to 5.3.28.