[Plugin: Custom Post Type UI] Error preventing sidebar display

Hi,

Custom Post Type UI is causing the following error and preventing my sidebar.php from showing:
Fatal error: Cannot redeclare curpageurl() (previously declared in mydomain.com/wp-content/plugins/custom-post-type-ui/custom-post-type-ui.php:1319) in mydomain.com/content/wp-content/themes/0286/sidebar.php on line 35

Line 35 of my sidebar.php is:
} echo curPageURL(); in the function:

function curPageURL() {
 $pageURL = 'http';
 if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
 $pageURL .= "://";
 if ($_SERVER["SERVER_PORT"] != "80") {
  $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
 } else {
  $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
 }
 return $pageURL;
} echo curPageURL();

Line 1319 of custom-post-type-ui.php is:
$pageURL = 'http'; in the function:

function curPageURL() {
	$pageURL = 'http';
	if (!empty($_SERVER['HTTPS'])) {$pageURL .= "s";}
		$pageURL .= "://";
	if ($_SERVER["SERVER_PORT"] != "80") {
		$pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
	} else {
		$pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
	}
	return $pageURL;
}

Anyone have any ideas what is happening?