User Report That They Can No Longer Able to Process

Multiple Choice

User report that they can no longer able to process transactions with the online ordering application, and the logging dashboard is displaying these messages. Fri Jan 10 19:37:31.123 EST 2020 [FRONTEND] INFO: Incoming request to add item to cart from user 45834534858 Fri Jan 10 19:37:31 247 EST 2020 [BACKEND] INFO: Attempting to add item to cart Fri Jan 10 19:37:31 250 EST 2020 [BACKEND] ERROR: Failed to add item: MYSQLDB ERROR: Connection refused What is causing the problem seen in these log messages?

A) The database server container has crashed.
B) The backend process is overwhelmed with too many transactions.
C) The backend is not authorized to commit to the database.
D) The user is not authorized to add the item to their cart.