HTTP Result Code: 200 Syntax error or access violation: 1064

On a Debian8 server with PHP 5.6.14, php-mysql 5.6 with innodb, and a fresh openatrium 7.x-2.50-rc1 quickinstall in a virtualmin server, the install process failed after few seconds, the message above is displayed and 31 tables are created in the database.
I don't find any post, drupal or openatrium issue report about that.
The same configuration with openatrium 7.x-2.45 and the update with 7.x-2.50-rc1 work fine.
The same configuration with normal installl work to.
The error page is blanck.

The database import has encountered an error.
Please continue to the error page
An AJAX HTTP error occurred. HTTP Result Code: 200 Debugging information follows. Path: http://myserver/install.php?profile=openatrium&locale=en&db_import_filen... StatusText: OK ResponseText: Home | Drupal @import url("http://myserver/modules/system/system.messages.css?0"); @import url("http://myserver/modules/system/system.menus.css?0"); @import url("http://myserver/modules/system/system.theme.css?0"); @import url("http://myserver/modules/system/system.base.css?0"); @import url("http://myserver/modules/user/user.css?0"); @import url("http://myserver/modules/system/system.admin.css?0"); @import url("http://myserver/modules/system/system.maintenance.css?0"); @import url("http://myserver/profiles/openatrium/openatrium.css?0"); @import url("http://myserver/themes/seven/reset.css?0"); @import url("http://myserver/themes/seven/style.css?0"); Home Installation tasksChoose profile(done)Choose language(done)Verify requirements(done)Set up database(done)Choose installation method(done)Install profile(active)Configure siteVerify Apps supportInstall AppsFinished SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;/*!40101 SET @OLD_COLL' at line 1