[How to get a save file from a different computer?]

Dear pandakraut.
I have wrote a respone on other topic, but admins have not apowed my response yet.
I need your mail or to contact you somehow.
I am trying for moth to instal your mod but it isnt going.
I have the *black screen issue* while loading. 
please leave mehere you contact or send me a mail on: ogyviceoux@gmail.com

Maybe an older version of mod will work or some other idea that I have

[J & P Rebalance Mod by JonnyH13 and Pandakraut 05/06/2023 1.28.4]

Hello,
I also have black screen issue.
Can anyone give me a link for 1.27 version of the MOD i want to try does that one work for me.
I am strugling for days