Autodesk-Forge Authentication issue with BIM360

I'm trying to run the BIM360 project setup script -you can find the script below- through forge, it was working fine for 2 days and then it started to give me the error shown below. my forge app is active and it's linked to the BIM360 hub. can anyone tell me why I'm getting this error and how to solve it.

https://github.com/Autodesk-Forge/forge-bim360.project.setup.tool

Autodesk.Forge.Client.ApiException: Error calling Authenticate: { "developerMessage":"The client_id specified does not have access to the api product", "moreInfo": "https://forge.autodesk.com/en/docs/oauth/v2/developers_guide/error_handling/", "errorCode": "AUTH-001"}
   at Autodesk.Forge.BIM360.Authentication.Authenticate(ApplicationOptions options) in C:\Users\Kareem\Desktop\Dynamo\Forge\forge-bim360.project.setup.tool-master\ForgeBimApi\ForgeBimApiWrappers\Authentication.cs:line 62
   at BimProjectSetupCommon.DataController.GetToken() in C:\Users\Kareem\Desktop\Dynamo\Forge\forge-bim360.project.setup.tool-master\BimProjectSetupCommon\DataController.cs:line 401
   at Autodesk.Forge.BIM360.ForgeApi.get_Token() in C:\Users\Kareem\Desktop\Dynamo\Forge\forge-bim360.project.setup.tool-master\ForgeBimApi\ForgeBimApiWrappers\ForgeApi.cs:line 65
   at Autodesk.Forge.BIM360.BimProjectsApi.GetProjects(List`1& result, String sortProp, Int32 limit, Int32 offset) in C:\Users\Kareem\Desktop\Dynamo\Forge\forge-bim360.project.setup.tool-master\ForgeBimApi\ForgeBimApiWrappers\BimProjectApi.cs:line 205
Error during intitialization
Application could not initialize correctly!