Mod_python error: "PythonHandler invenio.webinterface_layout"

Traceback (most recent call last):

  File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line 299, in HandlerDispatch
    result = object(req)

  File "/usr/local/lib/python2.4/site-packages/invenio/webinterface_handler.py", line 231, in _handler
    return root._traverse(req, path)

  File "/usr/local/lib/python2.4/site-packages/invenio/webinterface_handler.py", line 191, in _traverse
    result = obj(req, form)

  File "/usr/local/lib/python2.4/site-packages/invenio/websubmit_webinterface.py", line 221, in websubmit_legacy_getfile
    return _getfile_py(req, **args)

  File "/usr/local/lib/python2.4/site-packages/invenio/websubmit_webinterface.py", line 175, in _getfile_py
    doc = BibDoc(bibdocid=docid)

  File "/usr/local/lib/python2.4/site-packages/invenio/file.py", line 231, in __init__
    group = "g"+str(int(int(self.id)/archivesize))

ValueError: invalid literal for int(): 95'&&sLEEp(3)&&'1