LibreSwan -> MX IPSec Phase2 Proposals Issue

Hi,

I am trying to establish an IPSec tunnel from a Ubuntu running LibreSwan to a MX running IPSEC. I  am unable to figure out what I'm missing. It's a proposal mismatch but as far as I can tell, I have everything matching.

I dont have access to the MX but have been given the MX  Configuration snippet.

MX Config Snippet -  https://pastebin.com/EVpZjXky

My LibreSwan configuration  - https://pastebin.com/NFE2qCxM

Connection Up Output - https://pastebin.com/YyGPR9WN

Log - https://pastebin.com/b8t7rSyd

Would sincerely appreciate your assistance...