I have a clover web app built in [url removed, login to view] that runs perfect on our windows server for testing. When we switched it over to our Ubuntu server for production it no longer gets the orders even though the login works fine so I suspect that there is a specification that is different for Ubuntu than Windows that needs fixed.
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More explain: If you give me list of sub folders in node_modules, i can prepare for working more faster. I thinks your problem can be some packages not working when you bring your app across different os.