12.0.1 Uncaught Error: Class 'SupplierProposal' not found, generate ODT on project

Using my Dolibarr Other native modules
1

Dolibarr 12.0.1

when activated the module “Vendor Commercial Proposals” and generate ODT on Project you get
500 error
Got error 'PHP message: PHP Fatal error: Uncaught Error: Class ‘SupplierProposal’ not found