Resolution
Complete the following steps to change a resource from Inactive to Active:
1. Log into Project Web Access with administrator permissions
2. Click Admin - Manage users and groups
3. Click the pick list and select the user from the list
4. Click the Modify User button
5. Set the Account Status value to Active
6. Click the Save Changes button
Note: The above process works around the “invalid node name parameter” error message you may receive if you attempt to activate an inactive resource using the Enterprise Resource Pool in Microsoft Project Professional.