Previously I have added products and am looking to create more or edit existing products. Either way I receive the same error shown below. I have updated the web, server and addons to try and fix this error but it made no difference.

Any ideas?

Client Traceback (most recent call last):
  File "/opt/openerp/v7/web/addons/web/http.py", line 203, in dispatch
    response["result"] = method(self, **self.params)
  File "/opt/openerp/v7/web/addons/web/controllers/main.py", line 1129, in call_kw
    return self._call_kw(req, model, method, args, kwargs)
  File "/opt/openerp/v7/web/addons/web/controllers/main.py", line 1121, in _call_kw
    return getattr(req.session.model(model), method)(*args, **kwargs)
  File "/opt/openerp/v7/web/addons/web/session.py", line 43, in proxy
    result = self.proxy.execute_kw(self.session._db, self.session._uid, self.session._password, self.model, method, args, kw)
  File "/opt/openerp/v7/web/addons/web/session.py", line 31, in proxy_method
    result = self.session.send(self.service_name, method, *args)
  File "/opt/openerp/v7/web/addons/web/session.py", line 104, in send
    raise xmlrpclib.Fault(openerp.tools.ustr(e), formatted_info)

Server Traceback (most recent call last):
  File "/opt/openerp/v7/web/addons/web/session.py", line 90, in send
    return openerp.netsvc.dispatch_rpc(service_name, method, args)
  File "/opt/openerp/v7/server/openerp/netsvc.py", line 293, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/opt/openerp/v7/server/openerp/service/web_services.py", line 626, in dispatch
    res = fn(db, uid, *params)
  File "/opt/openerp/v7/server/openerp/osv/osv.py", line 188, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/opt/openerp/v7/server/openerp/osv/osv.py", line 131, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/opt/openerp/v7/server/openerp/osv/osv.py", line 197, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/opt/openerp/v7/server/openerp/osv/osv.py", line 185, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/opt/openerp/v7/server/openerp/addons/stock/product.py", line 438, in fields_view_get
    res = super(product_product,self).fields_view_get(cr, uid, view_id, view_type, context, toolbar=toolbar, submenu=submenu)
  File "/opt/openerp/v7/server/openerp/osv/orm.py", line 2260, in fields_view_get
    xarch, xfields = self.__view_look_dom_arch(cr, user, result['arch'], view_id, context=ctx)
  File "/opt/openerp/v7/server/openerp/osv/orm.py", line 1932, in __view_look_dom_arch
    model = res[0][1]
    IndexError: list index out of range