Why am i getting this error when i try to submit a form (Illuminate\Database\QueryException SQLSTATE[28000] [1045] Access denied for user)

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why am i getting this error when i try to submit the contact form ? And i get this issue only after hosting the website. Website works fine in the local machine with contact form.

i changed the .env file according to the hosted db credentials.

Illuminate\Database\QueryException
SQLSTATE[28000] [1045] Access denied for user 'cargills'@'localhost' (using password: YES) (SQL: insert into `contacts` (`name`, `address`, `phone`, `email`, `subject`, `division`, `message`, `updated_at`, `created_at`) values (sadsa, dfsdf, asdsad, dsfsd@asdfsa, Customer Enquiry, Exports, sadsad, 2020-02-21 11:27:32, 2020-02-21 11:27:32))

via Chebli Mohamed