You have three problems with the Products table from a standard design point of view.
- It is associated with the suppliers table (both in the property sheet and the supplier ids field).
- Categories is a multi-value field.
- Attachments is attachment type.
You should be able to run an update query as long as none of these fields are included. In your example, you have [Supplier IDs]. In standard design, you would have a junction table for products / suppliers.