Hello, this is a community support forum. I and other core team members are here primarily to facilitate the the user community helping each other to resolve issues. It looks like you’ve received a significant amount of individual attention from Kalyan; this is beyond the limit of what we can continue doing given that you are not using a server we manage.
I can’t say that I fully understand your issue by reading this thread and your private message. What is happening? Collect says all submissions were uploaded but some submissions are missing? From where is it missing? The table view, XLS exports, the data API? You run your own server: have you looked at the logs? Have you looked at the PostgreSQL and MongoDB databases?
With any luck, perhaps MongoDB is out of sync with PostgreSQL, and this is something you can remedy with a simple command: Data missing problem - #10 by Firstdata.
If not, you’ll need to wait for someone else on this forum to respond or retain qualified personnel to investigate the issue with your server. Thanks for your understanding.