AOP Case Update cases show raw data

I am using Joomla version 3.9.19 and SuiteCRM 7.11.10 wneh an Joomla user update a case appear a white screen with raw information about case as folow:
Url: https://casos.igloolabserver.com/index.php/es/casos?option=com_advancedopenportal&task=addupdate&format=raw

{“id”:“48e0640d-3e07-d595-a830-5eeb6ff0fabb”,“name”:“envio de comentario adicional”,“date_entered_display”:“18/06/2020 13:42”,“date_entered”:“2020-06-18 13:42:25”,“date_modified_display”:“18/06/2020 13:42”,“date_modified”:“2020-06-18 13:42:25”,“description”:“envio de comentario adicional”,“contact_id”:“4b0f27c6-8379-61d3-801a-5e3094e1638d”,“internal”:"",“assigned_user_id”:"",“contact”:[{“id”:“4b0f27c6-8379-61d3-801a-5e3094e1638d”,“first_name”:“John”,“last_name”:“Smith”,“date_entered”:“2020-01-28 20:08:26”,“date_modified”:“2020-05-22 12:29:07”,“description”:"",“portal_user_type”:“Single”,“account_id”:“649366c0-bbf1-2e8e-5e41-5e1f75428f2f”,“type”:“contact”}],“poster”:{“id”:“4b0f27c6-8379-61d3-801a-5e3094e1638d”,“first_name”:“John”,“last_name”:“Smith”,“date_entered”:“2020-01-28 20:08:26”,“date_modified”:“2020-05-22 12:29:07”,“description”:"",“portal_user_type”:“Single”,“account_id”:“649366c0-bbf1-2e8e-5e41-5e1f75428f2f”,“type”:“contact”},“notes”:[]}

I saw some similar issues that suggestr update /components/com_advancedopenportal/views/showcase/tmpl/default.php
$(this).ajaxSubmit(options);

If the user go back sing the record was updated. as well in Suitecrm.