I have a tree inventory survey which has some collected data i would like to sync back to the survey 123 account, however, when I sent it, it is giving me an error.

I have attached the xls form below as well.
My main concern is since the survey is published already and if I republish it, will it loose the collected data. I would want to back up the data first although it is not being published from my tablet to online so how can I back the data or fix the issue.
Any help would be appreciated .
thanks,