Fatal Error: Call to undefined function

I’m getting the following error on my sidebar; I am even getting it on pages where there is no widget. I’ve tried removing all the widgets and placing them back, but I wasn’t able to identify a single problem widget.

Fatal error: Call to undefined function s_page() in /home/content/t/a/r/taracoomans/html/styrophobia/wp-content/plugins/widget-logic/widget_logic.php(161) : eval()’d code on line 1

Can anyone tell me what this error refers to and make any suggestions on how to fix it?

THANK YOU !