Deprecated error

One day the plugin was working well but a day (a week ago) appened this:

Deprecated: Function create_function() is deprecated in C:\xampp7\htdocs\tuscany\wp-content\plugins\cherry-sidebars\cherry-framework\setup.php on line 15

Deprecated: Function create_function() is deprecated in C:\xampp7\htdocs\tuscany\wp-content\themes\provel-1\cherry-framework\setup-theme.php on line 14

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