Can not load DATA

I am having a small problem on loading data. Once I click on DATA, the Kobo browser disappears (as below).

Could any of you kindly let me know how could I solve this? (my first time trouble with Kobo).

Thanks for your kind supports.

Welcome to the community, @quanghuan! Would you mind cleaning the cache of your browser and try it again to see how it behaves? In addition, could you also let us know the total number of submissions that are there in your project?

Dear Lam,

I could not solve the problem. However, I could still download the data. That already makes me relaxed.

Tks a lot for your kind supports.

Bests

Hoi

P/S. Kobo will be strong. We are sharing it for uses among our colleagues. Thank a lot for your IT team who made an excellent survey Apps.