[2013-04-15 00:24:21] (ERROR @ /connectors/system/databasetables.php) Error HY000 executing statement: INSERT INTO `modx_session` (`id`, `access`, `data`) VALUES ('4k54glv0nnrj3b76k8vd0sppj7', 1365985461, 'modx.user.contextTokens|a:2:{s:3:\"mgr\";i:1;s:3:\"web\";i:1;}modx.mgr.user.token|s:52:\"modx516ace9a86f054.98150864_1516ad0074e5bf6.48211895\";modx.mgr.session.cookie.lifetime|i:0;modx.web.user.token|s:52:\"modx516ace9a86f054.98150864_1516ae51ef0b9f1.98377641\";modx.web.session.cookie.lifetime|i:0;newResourceTokens|a:4:{i:0;s:23:\"516b39bd414966.27606014\";i:1;s:23:\"516b3a5530f186.56632092\";i:2;s:23:\"516b45470e9893.15322834\";i:3;s:23:\"516b45abed6795.13336460\";}') Array ( [0] => HY000 [1] => 2014 [2] => Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. )
This question has been answered by treigh. See the first response.