gba emulator not launching games

[Retrotech]

I was having this issue after updating the freeplay and have since resolved it.To help some poor soul save some time I'm posting what I did to solve it.

Issue:
Issues launching gba games after updating RetroPie

What I tried first:
Updating lr-gpsp
Fresh install of retropie
Placing gba bios file in correct folder. (/home/pi/RetroPie/BIOS/)

Solution:
Update Retropie setup script by running this line in Putty (Remote ssh)

Code:

sudo ~/RetroPie-Setup/retropie_setup.sh

then Manage packages>Manage main packages>lr-gpsp>update (from source)

Wait ~30 minutes for it to install and that fixed my issue.