Bug or technical issue? Sudden error in my database/tables

Okay I know what cause this problem, and I think it’s a huge bug. Here is what I am doing to replicate this issue:

On macbook 1:

I rebuilt the table objects again. No errors popping up. I commit and push the update to github.

On macbook 2:

I clone this project, and as soon as I open up the tables, the same error pops up on this device. I refresh the schema and all the tables disappeared.

So the problem is pulling and pushing from github- the tables are not synching.

Unless I a not doing this correctly?