An unexpected error has occurred!
Error Message: An unrecognized expression appears in a script block. Script Expression: PRBrand MemberID: 10781506 JobID: 24907832
Description:An unexpected error occurred during the execution of the page.
line 0, column 0
Exception Info:
An error occurred when attempting to parse HtmlEmailBody content for HTML content.
  MemberID: 10781506
  JobID: 24907832
  ListID: 1492079
  Content Begins With: %%[/* Script Init */<div style="display:none;">*/
/* Page Tracking Init */
  Set @Publication  = "20

ExactTarget.OMM.InvalidScriptException:  The SET variable value expression is invalid.  See inner exception for detail.
  Script: Set @PRBrand = PRBrand
  Variable Name: @PRBrand
  Index: 482
  ListID: 1492079
Source:  OMMCommon