Connection dropped - Phoenix Emulator

I know it's been made alot of posts about this, but I can't seem to find the fix.

Right after my users login to my hotel, the connection drops. I've tried changing securtysettings from 1 to 0, and I've also checked my SWF's links.
I got this error in my exceptions file:

Code:

---

3/10/2013 6:47:57 PM: Error: System.NullReferenceException: Object reference not set to an instance of an object.
  at A..
(String
, Int32 )
  at A..(String
)
  at A..
(String
)
  at A..
(
, 
 )
  at A..
(Byte[]&
)

---

Still having the issue.

The client takes connections half of the times it gets a connection.

i am also having this error. i'm using illuminaCMS.

What are you using?