[Plugin: LinkShare Dealfeed] Does it matter where in sidebar.php the php tag is placed?

Well I’m trying to get this plugin to work and keep getting “function call undefined” error. Is there a specific location within the (sidebar.php file) the (php tag) code should placed?

just had another thought- the theme I am using is “F2”, on SoftwareNoodler, would the theme matter versus say the WP 2011 theme? Any help is appreciated.

https://www.ads-software.com/extend/plugins/linksharerss-ads/