Uncaught TypeError: Cannot set property 'checked' of undefined on page load

[aragorniiit]

Hi

I created a simple IR report on EMP table in 19.2 apex version and enabled IR Checkbox on EMPNO column. I gave static id as IRSELECTOR, added DA on click of IR. Plugin settings are shown below

When I run the page, I get below error in console of chrome Dev tools.

Uncaught TypeError: Cannot set property 'checked' of undefined
at Object.irCk.updateStateOfCheckboxHeader (apex_ir_checkbox.js:129)
at Object.irCk.renderSelections (apex_ir_checkbox.js:172)
at Object.irCk.ajaxSuccess [as callback] (apex_ir_checkbox.js:291)
at n (desktop_all.min.js?v=19.2.0.00.18:13)
at Object.apex.event.trigger.H.success (desktop_all.min.js?v=19.2.0.00.18:13)
at c (desktop_all.min.js?v=19.2.0.00.18:2)
at Object.fireWith [as resolveWith] (desktop_all.min.js?v=19.2.0.00.18:2)
at l (desktop_all.min.js?v=19.2.0.00.18:2)
at XMLHttpRequest. (desktop_all.min.js?v=19.2.0.00.18:2)

Please advise.

Thanks
Kishore