Hi Yousux – Kylla is correct in that this is an issue with your 32-bit operating system, particularly in regards to the crashes. Your crash log points to this directly:
“*—> Crash <—*
Out of Memory: arena=Environment, cat=Prop Packfile, allocBytes=10396684, arenaBytes=71425224, fallbackBytes=62304, align=0 , "
This may also be tied to that green/blue issue that you’re seeing in game, but as far as I can tell this has usually been an issue with a failing graphics card.
For the crash issue – there may be some workarounds that have worked with other players. One solution presented by players being affected by this is to change the “Maximum pre-rendered frames” in the Nvidia control panel. To do this:
1. Right-click on your desktop and select “Nvidia Control Panel.”
2. Select "Manage 3D Settings.
3. Scroll down until you find “Maximum pre-rendered frames” and change it from “Use the 3D application settings” to “1.”
Once completed, click “Apply” to save your changes and try Guild Wars 2 again.
Aside from this, the only other thing that may resolve these crash issues for you would be to upgrade to a 64-bit operating system.