Trouble with AR codes Star Wars Rogue Squadron II Rogue Leader (Invincibility code)

[Jon-Ari]

I've been trying to input the AR code for Rogue Squadron II for invincibility and I get the error:

"Could not save GSWE64.ini"

I've looked up several Youtube how to vids and I've done everything I'm supposed to,

there was a code on the page I got the AR code frm labeled (m) and I added that too figuring it was some sort of main code

but I get that error and it then wipes the list clean and I have to start over

is there a Geckocode way around it or not yet?

Is there a way to get this working right I'm not seeing?