Error 500 to update document with relationships

Hello, I have a problem updating a document (product) which has 6 attributes that are relationships to other documents (from other collections such as brand, category,...), I already checked that the permissions in the document collections that I have as relationships (brand, category,...) are configured in the same way as for the product collection. I cannot update the product document if I pass it the parameters that are relations, but it does update if I pass null in the parameters that are relations. The relationships are 5 bidirectional (many to one) and 1 unidirectional (many to one). The error I receive is the following: catch error updateDocument product= AppwriteException: general_unknown, Server Error (500)