Сделал проверку на совместимость
выдало в конце такое
MySQL Requirements
You are running MySQL version 5.5.37-0+wheezy1.
While this version is compatible, we recommend version 5.6.0 or above, but this is not essential. You may wish to contact your hosting provider or system administrator to ask for an upgrade if you are upgrading to IPS4.
Some or all of the columns in your database are not using the utf8_unicode_ci collation (admin_login_logs.admin_ip_address is utf8_general_ci). http://community.invisionpower.com/files/file/6823-ips-utf8-database-converter/