as you can see on my sql code i have single code but on the return error it display double code

my problem is fix. yes on the host it was working great but on the module that am using was wrong. after a contact with the developer it fix the problem and is working now.
i want to add something on this thread.
beside the insert on the database i need to check if the certain email already exist. i write the below code but is not working. i don't know how to use it beside using else
Select * from klinwtrapezigr .subscriptions where email='sdfsaf@hotmail.com'
ELSE INSERT INTO klinwtrapezigr.subscritption (email,from_site)
VALUES ('sdfsaf@hotmail.com','sf')

what is wrong with the code?