Page Error

Dear All

When i log in my Portal an error appears in the left side off the page.

Discription off the Error:

Line 603

Char: 4

Error: Object required

Code 0

URL: http://blepdes:50000/irj/servlet/prt/portal/prtroot/com.sap.portal.navigation.portallauncher.anonymous

Best Regards

Thanks in Advandced

Pedro Miguel Rodrigues