Is the following url what you are using for the back end url?
https://fioriqas.examplecompany.cl/sap/opu/odata/sap/ZBDW_APP_SRV_SRV
Otherwise if you go to the url you have entered what is showing up for the value of xml:base?
The backend url and the xml:base have to match otherwise issues will occur.
Regards,
Jamie
SAP - Technology RIG