[Ext JS]11.14 SimXhr.js?_dc=1659315492151:65 Uncaught TypeError problem analysis and solution

Questions:

Uncaught TypeError: Cannot read properties of undefined (reading 'delay')at constructor.schedule (SimXhr.js?_dc=1659400019385:65:47)at constructor.send (SimXhr.js?_dc=1659400019385:83:16)at constructor.start (ext-all-rtl-debug.js?_dc=1659400019385:28127:13)at constructor.request (ext-all-rtl-debug.js?_dc=1659400019385:29220:28)at constructor.sendRequest (ext-all-rtl-debug.js?_dc=1659400019385:102828:40)at constructor.doRequest (ext-all-rtl-debug.js?_dc=1659400019385:102819:19)at constructor.read (ext-all-rtl-debug.js?_dc=1659400019385:102110:31)at constructor.doExecute(ext-all-rtl-debug.js?_dc=1659400019385:92544:32)at constructor.execute (ext-all-rtl-debug.js?_dc=1659400019385:92177:35)at constructor.flushLoad(ext-all-rtl-debug.js?_dc=1659400019385:100968:23)

Scenario:

Defines a Grid,