Hi Team,
I think I find the solution and leave the idea here in case someone may have the similar case as mine.
Firstly, I convert the Table to Normal range.
Secondly, I convert the date from Format "Date" to "Text" if it has "SUM" function by date. I assume the SUM function cannot recognize whether to include the date value or not if it is Date format. Then to protect the original value, it automatically changes the formula to value only.
Hope it can help others.
Thanks.