Zen Cart v1.3.8a
Mod v4.7

Error Message when try to checkout from shopping cart:
1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ':f7073744a0abbb14cef2678c8463e53a LIMIT 1' at line 1
in:
[SELECT products_length, products_width, products_height, products_ready_to_ship, product_is_always_free_shipping FROM zen_products WHERE products_id = 106:f7073744a0abbb14cef2678c8463e53a LIMIT 1]

This happens when the cart includes any product that has attributes (besides read-only attributes, those do not create this error).

Any idea what might be going wrong?