That is not the reason why it was failing. Not even close. It was because a function call was wrong, these types of errors are not something php would display in FreePBX. You probably couldn’t see the new version because you have module admin caching on. Something you can disable in Advanced Settings.
Running these commands would have fixed you up:
amportal a ma delete fw_ari -f
amportal a ma download fw_ari -f
amportal a ma install fw_ari -f
Which is all detailed in this thread (though its super hard to find)