Here is the error I get:

2014-09-03 11:35:24,658:werkzeug:87: INFO: 128.9.128.125 - - [03/Sep/2014 11:35:24] "GET /?sEcho=1&iColumns=5&sColumns=&iDisplayStart=0&iDisplayLength=10&mDataProp_0=0&mDataProp_1=1&mDataProp_2=2&mDataProp_3=3&mDataProp_4=4&sSearch=&bRegex=false&sSearch_0=&bRegex_0=false&bSearchable_0=true&sSearch_1=&bRegex_1=false&bSearchable_1=true&sSearch_2=&bRegex_2=false&bSearchable_2=true&sSearch_3=&bRegex_3=false&bSearchable_3=true&sSearch_4=&bRegex_4=false&bSearchable_4=true&iSortCol_0=3&sSortDir_0=desc&iSortingCols=1&bSortable_0=true&bSortable_1=true&bSortable_2=true&bSortable_3=true&bSortable_4=true&time_filter=all&_=1409769324265 HTTP/1.1" 200 -
2014-09-03 11:35:26,428:Pegasus.service:1423: ERROR: Exception on / [GET]
Traceback (most recent call last):
File "/Users/juve/Workspace/pegasus/dist/pegasus-4.5.0cvs/lib/pegasus/externals/python/flask/app.py", line 1817, in wsgi_app
response = self.full_dispatch_request()
File "/Users/juve/Workspace/pegasus/dist/pegasus-4.5.0cvs/lib/pegasus/externals/python/flask/app.py", line 1477, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/Users/juve/Workspace/pegasus/dist/pegasus-4.5.0cvs/lib/pegasus/externals/python/flask/app.py", line 1381, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/Users/juve/Workspace/pegasus/dist/pegasus-4.5.0cvs/lib/pegasus/externals/python/flask/app.py", line 1475, in full_dispatch_request
rv = self.dispatch_request()
File "/Users/juve/Workspace/pegasus/dist/pegasus-4.5.0cvs/lib/pegasus/externals/python/flask/app.py", line 1461, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/Users/juve/Workspace/pegasus/dist/pegasus-4.5.0cvs/lib/pegasus/python/Pegasus/service/dashboard/views.py", line 41, in index
count, filtered, workflows, totals = dashboard.get_root_workflow_list(**args)
File "/Users/juve/Workspace/pegasus/dist/pegasus-4.5.0cvs/lib/pegasus/python/Pegasus/service/dashboard/dashboard.py", line 78, in get_root_workflow_list
count, filtered, workflows = all_workflows.get_all_workflows(**table_args)
File "/Users/juve/Workspace/pegasus/dist/pegasus-4.5.0cvs/lib/pegasus/python/Pegasus/service/dashboard/queries.py", line 152, in get_all_workflows
raise ValueError, ('Invalid column (%s) in work-flow listing ' % i)
ValueError: Invalid column (4) in work-flow listing