We have limited certain characters in order to prevent abuse. The most common error is when trying to post a slash character ( / ). Please ensure there are no other unauthorized characters in your message. 

Allowed characters: 

All letters (A-Ö) 

All numbers (0-9) 

The following characters: ” ‘ ´ ` ! ? – , . : ) ( 

Unauthorized characters: / % + @ ½ = *