Why do I always freeze on addon maps?

[Calaad]

Whenever I go on an addon map (planets, rtbisles, slatefields, etc) as soon as i get past the loading objects bar and my avatar appears, I freeze and have to restart my computer, even for maps that I have downloaded.

[Ad Bot]

[Rubrick]

one of your default files is messed up
                   

[tubsiwub]

Your computer can't handle more. You use a labtop?

[Spiderobot]

Post console script, that should help us all.

[Calaad]

Im not using a laptop, and I can run games like neverwinter nights easily. Im going to try  to uninstall and reinstall blockland.

[ace frog]

its one of your add-ons.
i oalmost un-installed blockland and re-installed blockland but i foung the add-ons that screwed up my comp.