I've the same problem. I'm using php 5.5.14
This is the error:
Table 'hotel_expressiva.#__users' doesn't exist SQL=UPDATE `#__users` SET block=1 WHERE block=0
Table 'hotel_expressiva.#__viewlevels' doesn't exist SQL=INSERT INTO `#__viewlevels` (`id`, `title`, `ordering`, `rules`) VALUES (1,'Public',0,'[1]'),(2,'Registered',1,'[6,2,8]'),(3,'Special',2,'[6,3,8]')
Unknown collation: 'utf8mb4_unicode_ci' SQL=CREATE TABLE `#__viewlevels` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary Key', `title` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '', `ordering` int(11) NOT NULL DEFAULT '0', `rules` varchar(5120) COLLATE utf8mb4_unicode_ci NOT NULL COMMENT 'JSON encoded access control.', PRIMARY KEY (`id`), UNIQUE KEY `idx_assetgroup_title_lookup` (`title`) ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci