Regards. I get the following error when loading a grid from a web service.

Captura de Pantalla 2020-05-18 a la(s) 18.39.44.jpg
The data is loaded correctly, but any request I make has the same error. How can I remove it?

I use SA 4.2.8.440
Framework: Ext JS 7.2.x Modern


Thanks in advance

Santiago