ISSUE
TSM for SharePoint backup job failed with error message: (Type) Site Collection (Path) Error message: Build content file error:System.NullReferenceException: Object reference not set to an instance of an object.
CAUSE
DocAve can’t call SharePoint API to discover this user from user information list to backup if the corresponding user is moved from SharePoint site.
SOLUTION
Install the TSM for SharePoint 6.1.5 fix pack.
1) Go to ‘Patch Manager’
2) Upload the patch zip file and apply the patches to DocAve manager FIRST, then DocAve agent after.
REFERENCE