BackTest with Local national holiday

The data was gathered since 1st August, however, due to 10 October is National Day, back test will start from 11 October.

Please note I need the data of the back test starting from 1st August.

the time interval is set to 5minK

AB0001 AB0002 AB0003

I am still waiting, may I ask, my AB back test can only be from 10/11, but I am sure my data is from 8/1, how to check if the problem is there