Cannot rent a property without the permission of the owners. that would include you as part owner.
If it was me I would look at doing the following:
talk to my expartner.
If that is not an option, I would have a lawyer send a’ burrofa’x demanding the information as part owner, also stating that should the property be rented without my express permission I would do a ‘denuncia’ against them.
If you are in the country you could simply go to the agency with an updated nota simple, showing you are currently part owner and request the information, if not given, ask for the “libro de hojas de quejas y relamaciones”.