In french, we have a sentence : "Ne pas mettre la charrue avant les boeufs"
Your error message only tell us that igo don't find a file.
First thing : how do you installed igo ?
I could see two things in your case :
- maybe there is another ini file in the main memory, program files folder, of your device and the one on storage card is not used
- maybe the link on the start menu that you use try to go to another folder than storagecard\igo8
Try to run igo directly from the folder on your storage card by launching the app from file explorer.