Problem with Avg function and Money type in PostgreSQL 15

price MONEY NOT NULL);

INSERT INTO Product(price) VALUES (30);

INSERT INTO Product(price) VALUES (40);

SELECT Avg(price) AS av FROM Product;

PostgreSQL 14.5

ERROR:  function avg(money) does not exist

LINE 1: SELECT Avg(price) AS av FROM Product;

HINT:  No function matches the given name and argument types. You might need to add explicit type casts.

PostgreSQL 15

ERROR:  stack depth limit exceeded

HINT:  Increase the configuration parameter "max_stack_depth" (currently 2048kB), after ensuring the platform's stack depth limit is adequate.

CONTEXT:  SQL function "avg" during inlining

SQL function "avg" during startup

It seems to me that PostgreSQL 14.5 response is much better than in case of PostgreSQL 15.

Best regards