Error with SC 8.1.017

Hi, i update my version 8.0 to 8.1. i am getting errors When i update any property of my form i get the next error:

Id do menu nao encontrado.
class:
file: C:\Program Files (x86)\NetMake\v8\wwwroot\scriptcase\devel\lib\php\functions.inc.php
function: StartIncItensCoolJsMenu
line: 2367
topico -> [fields_tit] Id do menu nao encontrado.
class:
file: C:\Program Files (x86)\NetMake\v8\wwwroot\scriptcase\devel\lib\php\functions.inc.php
function: StartIncItensCoolJsMenu
line: 2367
topico -> [events_tit_ajax]

How can i fix it?

Why you update your SC 8.0? The safeĀ® way is, make a full backup of your projects with SC 8.0, install a fresh SC 8.1 and restore the backup.

Ok i will try do it. Thanks you.