From the free shop:

"Database error - send this to Keith: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 (SQL: SELECT COUNT(1) AS count FROM stocked_items WHERE itemid=)"

I also got that too

"Database error - send this to Keith: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 (SQL: SELECT COUNT(1) AS count FROM stocked_items WHERE itemid=)"

My free shop currently shows one single present that appears to be stuck there despite the free shop saying Restocked Now.

Same here.

Even when the shop says restocked now

Go ahead and post here for consolidation: Free Shop - Database Error :)