Mod or hack to re-enable a shop? [Minor spoilers]
 

Grenvinn (the battle mage in the elf insland) will close her shop for you after you've finished her quest and/or advanced in the main quest. For me, it was particularly brutal because she had two items I meant to buy but was holding out due to being just under the 3m cash mark to get the achievement. Later on when I got to her, she would no longer trade with me and later on she'll be gone for good.

Is there any way to re-enable her shop through modification? I'd greatly appreciate because currently I feel REALLY bummed out about this and considering starting the game over to fix it.

I remember seeing someone mention something about a shop that closes down in some other thread (oh how I wish I woulda remembered that yesterday when I was playing..) but was unable to find that topic.

there are lots of shops in the game like that, sadly. Don't think there is an easy way to change that.

Do you remember those items' names you missed ?

Try to add items by pressing "shift" and "~" in-game and type item xxxxxx .(There is a "space" between "item" and "xxxxx")
http://princess.kingsbountygame.com/codes.php

If you forgot those names or got nothing , maybe you can refer to the thread :
http://forum.1cpublishing.eu/showthread.php?t=35841