Thread:Extension talk:Maps/Warning: There is an error in your syntax. Intermittent

I am getting the following error : Warning: There is an error in your syntax.

This seems to happen when I add too many pointers on the map. They each work on their own but when I add them all onto one map I get the error. I have tried taking out one at a time but sometimes it works when I get to around 15 pointers and sometimes it doesn't.

Any ideas ? my test page can be seen at http://www.stampsoftheworld.co.uk/wiki/Sand_Box