If I am not mistaken, I think this is a fault of your theme.
Some Moodle Themes add blocks to what, in Moodle terms, is called 'base' layout. It is the block regions in this layout that makes this page look like your screenshot in Turnitin.
If you have access to your theme's folder on your server, then please take a look at the theme's config.php and look for the 'base' layout that looks like this...
$THEME->layouts = array(
'base' => array(
'file' => 'general.php',
'regions' => array('side-pre', 'side-post'),
'defaultregion' => 'side-pre',
),
you then need to change it to look like this...
$THEME->layouts = array(
'base' => array(
'file' => 'general.php',
'regions' => array(),
),
This tells Moodle that this layout has no blocks. By default this layout is for those pages that require NO blocks at all.
Unfortunately Canvas theme added blocks to this layout and Moodle HQ refuse to change it, so if your theme using Canvas theme as a parent theme, then this is probably what is causing the problem.
To check this out first, you could try changing theme to the Afterburner theme, which using the correct layout.
Please let me know the out come.
You will need to refresh your browser window if you do make the changes I have highlighted above.
Thanks
Mary