Hello again!
I've tried to add directly the Google Maps at:
/templates/sj_stabwall/html/mod_sj_contact_ajax/default.php
and:
/modules/mod_sj_contact_ajax/tmpl/default.php
But it has no effect on my website, it seems that the html code is generated from another .php file, because when i inspect the front end with the browser i see the old html structure,
I had problems to rebuild cache before with menus, but it doesnt seem a problem of the cache, since I tried this a week ago, also deleted caches several times and unplublished-published the module.