vb4.2.0 PL3 to VB5 beta 26 register and lostpw issue
 

I upgraded my idle forum from vbulletin 4.2.0 PL3 to VBulletin 5.0.0 Beta 26 without any errors during upgrade.
I get the folowing errors

lost password :
HTTP 500 error

register :
That action could not be completed. Please try again, and if this occurs again please contact the system administrator and tell them how you got this message.

Posting a reply :
Error loading delete form. (Error code 500)

Please try again.

If i create a new database and use the install system without altering files ( exept for the DB ofcourse ) everything works fine on the site..
lostpw works and register works and replying on a thread just works

Could there be something wrong with the database ?
Even if the update script didn't generate errors?

Anyone have any ideas?

url: http://www.3dgamingnetwork.com/ ( just a quick setup all files default - no addons / styles )