Error log version 7.8.1

[Fri Feb 10 15:37:35 2017] [error] [client 5.168.40.7] PHP Fatal error: Uncaught exception ‘Exception’ with message ‘Database fallito. Si prega di fare riferimento a sugarcrm.log per i dettagli.’ in /var/www/suitecrm/include/utils.php:1623\nStack trace:\n#0 /var/www/suitecrm/include/database/DBManager.php(345): sugar_die(‘Database fallit…’)\n#1 /var/www/suitecrm/include/database/DBManager.php(321): DBManager->registerError(‘Error finding t…’, ‘MySQL error 106…’, true)\n#2 /var/www/suitecrm/include/database/MysqliManager.php(159): DBManager->checkError(‘Error finding t…’, true)\n#3 /var/www/suitecrm/modules/SecurityGroups/SecurityGroup.php(692): MysqliManager->query(‘seect securityg…’, true, ‘Error finding t…’)\n#4 /var/www/suitecrm/service/quickcrm/SugarWebServiceImplquickcrm.php(99): SecurityGroup->getUserSecurityGroups(‘e5727d05-8349-1…’)\n#5 [internal function]: SugarWebServiceImplquickcrm->login(Array, ‘’, ‘’)\n#6 /var/www/suitecrm/service/core/REST/SugarRestJSON.php(91): call_user_func_array(Array, Array)\n#7 /var/www/suitecrm/service/core/SugarRestService.php(133): Su in /var/www/suitecrm/include/utils.php on line 1623, referer: http://web.new-system.it:8801/suitecrm/mobile/

This is a bug in Security Groups:
In modules/SecurityGroups/SecuritiyGroup.php,
replace
$query = 'seect securitygroups.id, securitygroups.name from securitygroups_users ’
by
$query = 'select securitygroups.id, securitygroups.name from securitygroups_users ’