Thanks for your answer.
- Version was: 2.0.5. Now I'm on: 3,4.
- I didn't have a menu, just an html module with an image that links to the map. I didn't program the earlier version and I don't know if it was the correct way to do this.
- I did hava a 0, that's what happens when you update the database manually without a clue
May I have missed anything else in this process?
Now I do see the markers but how can I fix the issue with the link?
EDIT:
There seems to be a few js problems going on too:
-TypeError: b is undefined
-TypeError: category is undefined (4 times this one)