Not sure whats up..... cant play the game, keeps saying update failed

What game? You're posting in the GOG.com General Discussion forum.

The game is afoot!

Ahaha.... sorry, Divinity 2

Galaxy client install, web site installed download, classic or galaxy installer, windows (version) or Linux/mac.
Also, it's a newish game, so maybe a support ticket usng the support button at top of website page may help as not everyone will have got this game yet. Did you try uninstall and re-install (good idea to keep offline installers regardless of how you use it - there is an option in galaxy for this also).

Works fine here. Just played the game yesterday, killed two Behemoths with the old "sneak behind the enemy, shoot in the eyes/sensors to knock it out, and then attack it with all your might!"-trick.

EDIT: Ah ok, Divinity 2... I was playing Fallout Tactics with the Redux 1.3 mod.

Well... I am now reinstalling the game.... at a wopping 0.5 MB/s confused.... I have fiberoptic 1gb/s I just updated witcher 3 at 35 MB/s so... I am trying to keep my cool

if there was a update for Divinity 2 on steam, it could take a day or 2 before gog updates it, even with galaxy as GOG staff dont work weekends.