500 Internal error

The server encountered an unexpected condition which prevented it fr m fulfilling the request.

Page handler: <bound method rest.default of <
nomalism2.REST.rest object at 0x87a430c>>
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/CherryPy-2.2.1-py2.4.egg/cherrypy/_cph
tptools.py", line 105, in _run
    self.main()
  File "/usr/lib/python2.4/site-packages/CherryPy-2.2.1-py2.4.egg/cherrypy/_cph
tptools.py", line 254, in main
    body = page_handler(*virtual_path, **self.params)
  File "<string>", line 3, in default
  File "/usr/lib/python2.4/site-packages/TurboGears-1.0.4b1-py2.4.egg/turbogear
/controllers.py", line 342, in expose
    output = database.run_with_transaction(
  File "<string>", line 5, in run_with_transaction
  File "/usr/lib/python2.4/site-packages/TurboGears-1.0.4b1-py2.4.egg/turbogear
/database.py", line 316, in so_rwt
    retval = func(*args, **kw)
  File "<string>", line 5, in _expose
  File "/usr/lib/python2.4/site-packages/TurboGears-1.0.4b1-py2.4.egg/turbogear
/controllers.py", line 359, in <lambda>
    mapping, fragment, args, kw)))
  File "/usr/lib/python2.4/site-packages/TurboGears-1.0.4b1-py2.4.egg/turbogear
/controllers.py", line 386, in _execute_func
    output = errorhandling.try_call(func, *args, **kw)
  File "/usr/lib/python2.4/site-packages/TurboGears-1.0.4b1-py2.4.egg/turbogear
/errorhandling.py", line 72, in try_call
    return func(self, *args, **kw)
  File "/opt/enomalism2/enomalism2/REST.py", line 119, in default
    return ep['default'](self,*args,**kwargs)
  File "/opt/enomalism2/enomalism2/REST.py", line 75, in thecaller
    return fn(*args,**kwargs)
  File "/opt/enomalism2/enomalism2/modules/machinecontrol.py", line 326, in res
_machine_UUID_actions_provision
    txid,newuuid=m.provision(kw['pkguuid'],kw['hvmuuid'])
  File "/opt/enomalism2/enomalism2/model.py", line 338, in provision
    hvm=hypervisor.by_uuid(hvmuuid)
  File "<string>", line 1, in <lambda>
  File "/usr/lib/python2.4/site-packages/SQLObject-0.9.1-py2.4.egg/sqlobject/ma
n.py", line 1303, in _SO_fetchAlternateID
    raise SQLObjectNotFound, "The %s by alternateID %s = %s does not exist" % (
ls.__name__, name, repr(value))
SQLObjectNotFound: The hypervisor by alternateID uuid = u'c9aa4b57-80cf-11dc-9e
2-00304887d638' does not exist