@rsomaumenye, seems like you have edited and redeployed your survey project multiple times. FYI (45 different times),
When you edit and redeploy you should be very cautious with the repeat group variables. So a quick temporary solution is to download your data in XLS (legacy) format. A permanent solution would be to fix it as outlined in our previous post:
edit
redeploy
repeat group
XLS (legacy)