You have a notice thrown from your plugin that you might want to fix for the next version/release.
Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead.
Deprecated in version 2.0.
Argument in add_options_page()
Used in wp-content/plugins/wp-content-slideshow/wp-content-slideshow.php on line 16.
The fix is easy, replace the third argument, constant 10, with 'manage_options' on line 16 of wp-content-slideshow.php