Fatal error: Call to undefined method Contact::getContactRoles()

Hi
I’m upgraded from V9.0.0 to V9.0.4. After upgrading, everything looks quite ok. However, i faced with issue in generating PDF file such as proposal, invoice… as below
Fatal error : Call to undefined method Contact::getContactRoles() in C:\dolibarr\www\dolibarr\htdocs\core\triggers\interface_90_modSociete_ContactRoles.class.php on line 82

I upgraded from Doliwamp, my computer is using window 7.
Look for the helps
Thank in advance