Strange issue after site moved to new Host


Active Member
Hi Friends
I have backed my sql database and wp files from siteground and transferred to hostgator.
My site was using Original Alipliugin. But now I am having strange problem

When I click on any links it is not working but instead just downloading a blank file. If I type manually like or wp-admin it is downloading a file again. Also all the prices become 0.00.

What have I missed out?

Could it be because hostgator I am using addon domain for this site? How should I fix this?
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