here's a personal repo where you can download the ext from, with the combat timer updated to FGU, and replaced the fgf fonts with free ttf open license fonts so that it doesn't spew out errors, and rearranged some code and put inside other files :)
let me know how it goes, download from here
https://github.com/Morturg/FG-PFRPG-...Timer/releases
if it ever needs handing over, or the original dude comes back to support it, I'll happily pass over the repo