Hi @BabatopeAdebajo1
I am so sorry for the late response. Unfortunately, the error raised in console is not the cause of the issue, and we will need to investigate more on this.
Could you please try clicking "Open in Map Viewer", and then use the filter on the map viewer to see if the filter works on Created at or not? If the filter does not work on the map viewer either, then there may be some issue with the feature service. Then, I encourage you to contact the Esri Support and work with an analyst. They will be able to diagnose further and work with you on this.
If the filter works on map viewer, then could could you please send us a screenshot of the fields of your main feature layer, like this one:
Could you please open your network panel on the developer tool, and then apply the filter again. There should be a failed query request shown in red, and click on the request to see the details? Scroll to the bottom of the header tab, and send us a screenshot of the Query Strings Parameters (please blur the token for safety), and then go to the response tab, expend all section and send us a screenshot of that.
Thanks,
Ruth