"Getsockopt" after Port Forwarding my Home Server PC

OS: Windows 11

Product Name/Version: Better Minecraft 5 (1.20.1)

Problem Description: Everytime my GF joins my server she gets met with the getsockopt error

Steps to reproduce:

  • Step 1 Started up server with modpack fully installed
  • Step 2 Ran from ip direct connect and worked perfectly
  • Step 3 GF joins and she gets the error message

Actions taken to resolve so far: I have already made a similar post before but now i am met with a new issue i port forwarded my home server as a device then gave my GF the IPv4 address i had to search and she cannot connect to my server what do i need to do to fix her from not being able to join from her own home also as a side note i cannot connect through direct LAN either