Userpoints causes account/profile page to break.

Enabling Userpoints causes profile pages to break. Uncertain as to why beyond the query itself looks like it is broken based on the error message:

Error message

PDOException: SQLSTATE[22P02]: Invalid text representation: 7 ERROR: invalid input syntax for integer: "" LINE 1: SELECT * from userpoints_txn WHERE txn_id = '' ^: SELECT * from {userpoints_txn} WHERE txn_id = :txn; Array ( [:txn] => ) in userpoints_transaction_load() (line 1852 of x/sites/all/modules/userpoints/userpoints.module).
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This is an error result from PostgreSQL, not MySQL, keeping that in mind, it looks like it's failing to retrieve anything in the :txn resultset, worse, making the resultset a blank string '' when it's expecting an integer.