Redmine

Summary:
Users receive a blank page instead of an error message when entering invalid credentials on the login page.

Steps to Reproduce:

Open the application URL: https://example.com/login.
Enter the following invalid credentials:
Username: wronguser
Password: wrongpass.
Click the Login button.
Expected Result:
An error message should display: "Invalid username or password. Please try again."

Actual Result:
A blank white screen is displayed after clicking the Login button.

Environment:

Browser: Google Chrome Version 117.0.
OS: Windows 11.
Application Version: v2.3.5.
Attachments:

Screenshot of the blank screen (if possible).
Priority:
High (affects user login functionality).

Assignee:
(Assign to a developer or leave unassigned if unknown).