Moving my apps from VBCS to Visual Builder Studio (BO endpoints and Data)

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Hi Experts,

I followed the tutorials to move my app to visual builder studio.

But when I run it, I noticed that all the pages has error when reading the BO endpoints. and when I click on the endpoints I see it is looping and not showing the usual endpoints. And I noticed all the old data in the BO's are not there and all the BO's have empty data.

Still, I did not check the external API's but I want to fix the issue with BO's first.

And when I try to upload the old data i get the error in the attached image