How to pick up a missed loop on a loom knit project?

Teaching my friend how to knit, and somehow he lost a loop about two inches down in his work- the problem is now there is a hole, and as soon as he missed the one, he resumed on the next row. Do i need to tear apart that whole row up to the loom to crochet that back in place, or is there an easier fix?

Most people here knit with needles not looms so be patient and someone can probably answer you. :slight_smile:

ETA: On regular knitting you can use a crochet hook to pick up dropped stitches to put them on the needle so it may work the same or similarly with a loom.