Exit with an error if profile info isn't available in Module\NoScrape

src/Module/NoScrape.php

@@ -49,11 +49,14 @@ class NoScrape extends BaseModule
 			$which = $a->user['nickname'];
 		} else {
 			System::jsonError(403, 'Authentication required');
-			exit();
 		}
 
 		Profile::load($a, $which);
 
+		if (empty($a->profile['uid'])) {
+			System::jsonError(404, 'Profile not found');
+		}
+
 		$json_info = [
 			'addr'         => $a->profile['addr'],
 			'nick'         => $which,