FIxed the region name from 'pushkin_sq' to 'pushkin'. Now it should work.

locations/music_buskingevents.qsrc

@@ -42,7 +42,7 @@ if $ARGS[0] = 'calculate_tips':
 		ml_location_mod = 30
 	elseif $region = 'pav':
 		ml_location_mod = 0
-	elseif $region = 'pushkin_sq':
+	elseif $region = 'pushkin':
 		ml_location_mod = 15
 	end