error report！

hello，

I test in a Multisite, and met the following error. By the way, any plan to develop an addon or extentions to support mycred? I am makerting expert and not technical, it would be better if we can reward users mycred points to encourage them involve in poll!
( ! ) Fatal error: Uncaught exception ‘MDatabaseException’ with message ‘Table ‘mysite.mysite_7_users’ doesn’ in /www/webroot/mysite.com/wp-content/miwi/framework/database/database/mysql.php on line 300 ( ! ) MDatabaseException: Table ‘mysite.mysite_7_users’ doesn’t exist SQL=SELECT m.*, u.user_login AS editor, COUNT(o.id) AS options, (SELECT count(v.id) FROM mysite_7_miwopolls_votes AS v WHERE v.poll_id = m.id) AS votes FROM mysite_7_miwopolls_polls AS m LEFT JOIN mysite_7_users AS u ON u.id = m.checked_out LEFT JOIN mysite_7_miwopolls_options AS o ON o.poll_id = m.id AND o.text <> ” GROUP BY m.id ORDER BY m.title LIMIT 0, 30 in /www/webroot/mysite.com/wp-content/miwi/framework/database/database/mysql.php on line 300 Call Stack # Time Memory Function Location 1 0.0095 1563584 {main}( ) …/admin.php:0 2 1.7750 42325744 do_action( ) …/admin.php:168 3 1.7899 42691616 call_user_func_array:{/www/webroot/mysite.com/wp-includes/plugin.php:525} ( ) …/plugin.php:525 4 1.7899 42691792 MWordpress->preDisplayAdmin( ) …/plugin.php:525 5 1.7903 42697336 MApplication->dispatch( ) …/wordpress.php:289 6 1.7907 42737392 MComponentHelper::renderComponent( ) …/application.php:190 7 1.8021 42761352 MComponentHelper::executeComponent( ) …/helper.php:92 8 1.8022 42788368 require_once( ‘/www/webroot/mysite.com/wp-content/plugins/miwopolls/admin/miwopolls.php’ ) …/helper.php:103 9 1.8079 43687552 MController->execute( ) …/miwopolls.php:36 10 1.8079 43687872 MiwopollsController->display( ) …/controller.php:425 11 1.8081 43689200 MController->display( ) …/controller.php:57 12 1.8203 45132680 MiwopollsViewPolls->display( ) …/controller.php:400 13 1.8243 45496784 MView->get( ) …/view.html.php:87 14 1.8243 45497072 MiwopollsModelPolls->getData( ) …/view.php:124 15 1.8243 45497312 MModel->_getList( ) …/polls.php:47 16 1.8244 45497552 MDatabase->loadObjectList( ) …/model.php:161 17 1.8244 45498728 MDatabaseMySQL->execute( ) …/database.php:516