Archlinux: obmenu won't start

I'm on openbox at Arch Linux and recently installed my system. I want to use obmenu to configure the menu.

But for some reason, it is not working. Error at startup:

Traceback (most recent call last):
  File "/usr/bin/obmenu", line 582, in <module>
    app.init()
  File "/usr/bin/obmenu", line 489, in init
    self.menu.loadMenu(self.menu_path)
  File "/usr/lib/python2.7/site-packages/obxml.py", line 153, in loadMenu
    self.dom = xml.dom.minidom.parseString(fil.read())
  File "/usr/lib/python2.7/xml/dom/minidom.py", line 1928, in parseString
    return expatbuilder.parseString(string)
  File "/usr/lib/python2.7/xml/dom/expatbuilder.py", line 940, in parseString
    return builder.parseString(string)
  File "/usr/lib/python2.7/xml/dom/expatbuilder.py", line 223, in parseString
    parser.Parse(string, True)
 xml.parsers.expat.ExpatError: not well-formed (invalid token): line 167, column 27

What is going wrong?

Solution

I already solved it. My menu contained an Formatting Mistake!