After changing the password for the sa account in MSSQL, there is a login error in the logs, how to remove it?

Question

Database administration

Changed the password for the sa superadmin in the sequelserver. In the Windows logs every two minutes an error is written:

Login failed for user "sa". Cause: The password did not match the login passed. [CUSTOMER: ]

How to fix it?
I have already checked all the options where the superadmin can be used, I can’t figure out where to enter a new password so that the error goes away and where this sa is trying to log in.
There are maintenance plans, I also checked everything there. Where to dig?

Answer 1

MSSQLSERVER 18456

Answer 2

Try to reconnect the database in the 1C administration cluster by specifying a new login\password pair.
Or, as an option, specify a new password in the properties of the cluster database.