My form "open build registration" suddenly disappear. I can't access my form, could you help me, please?

this is the link that we have made http://www.habitatindonesia.org/en/build-indonesia/women-build

I checked the form on your website and it appears that the form you are referring to has been deleted.

The form appears to be owned by a user named meliana. If the form has not been purged, you may still be able to recover the form. To do so, simply follow this guide: How to Restore Deleted Forms?.
However, if the form has been purged from the trash folder, then unfortunately it will not be possible to restore the form.

If you need further assistance, please let us know.