On setting values for manifest URL following is seen Site Error Log Site Error Log at /erp5/error_log Exception traceback [ Return to log ] Time 2020/06/08 04:51:32.185692 UTC User Name zope (zope) (User Id) Request URL https://hostname/erp5/web_site_module/officejs_nice_editor/app/ Base_createAppConfigurationManifest Exception AttributeError Type Exception 'NoneType' object has no attribute 'find' Value Traceback (innermost last): • Module Products.ERP5Type.patches.WSGIPublisher, line 265, in transaction_pubevents yield • Module Products.ERP5Type.patches.WSGIPublisher, line 442, in publish_module response = _publish(request, new_mod_info) • Module Products.ERP5Type.patches.WSGIPublisher, line 375, in publish bind=1) • Module ZPublisher.mapply, line 77, in mapply if debug is not None: return debug(object,args,context) • Module Products.ERP5Type.Timeout, line 120, in deadlined_call_object return call_object(object, args, request) • Module ZPublisher.Publish, line 48, in call_object result=apply(object,args) # Type s to step into published object. • Module Products.ERP5Type.patches.PythonScript, line 179, in __call__ return self._orig_bindAndExec(args, kw, None) • Module Shared.DC.Scripts.Bindings, line 359, in _bindAndExec return self._exec(bound_data, args, kw) • Module Products.PythonScripts.PythonScript, line 344, in _exec result = f(*args, **kw) • Module script, line 43, in Base_createAppConfigurationManifest Line 43 configuration_file_reference = getElementFromContent ("configuration_manifest", router_content) • Module script, line 9, in getElementFromContent Line 9 start = content.find(before) + len(before) AttributeError: 'NoneType' object has no attribute 'find'