I have a chart, where I use a parameter to filter data. The parameter names are in spanish, some with special characters. These ones make the report break. I see this message.

This is my parameter

This is the message i get

And this happens in the log file
[http-bio-8080-exec-8] 28 feb 2019 15:17:52,806 ERROR it.eng.spagobi.analiticalmodel.document.handlers.DocumentUrlManager.getValidationErrorsOnValuesByLovResult:584 - Parameter 'PlanPresupuestal' cannot assume value 'GESTI�N ESTRAT�GICA 2018' for user 'biadmin' with role 'admin'.
How can i solve this problem?
Data base is allready configures to work like this with other software. I use MySQL