[Plugin: Tweet Old Post] Notice: has_cap was called with an argument

Hi I get the error immediately after activation in the admin panel.

System Details:
Running on: nginx/1.1.0
Powered by: PHP/5.3.5-1ubuntu7.3

Tweet Old Post: Version 4.0.1

Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in ..../wp-includes/functions.php on line 2789
Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in ..../wp-includes/functions.php on line 2789
Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in ..../wp-includes/functions.php on line 2789
Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in ..../wp-includes/functions.php on line 2789
Notice: get_settings is deprecated since version 2.1! Use get_option() instead. in ..../wp-includes/functions.php on line 2705

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