Database connection with laravel application hosted on hostinger server sub domain [duplicate]

i have Hostinger server when i upload any laravel application on it and connect it with correct database credentials in env it shows
SQLSTATE[HY000] [1045] Access denied for user ‘u334339390_POLydooRdBUsr’@’127.0.0.1’ (using password: YES) (SQL: select * from sessions where id = 26DRGziVVIM0Z9Nn8F0tK8S3sd0FmrrEipRXwOSK limit 1)
but when i connect it with other existing database of existing other laravel application it connect successfully why for new it shows this
please give me its reasons and possible solutions