Website breaks with update 5 for CF11

I am running ColdFusion 11, and the relevant website works well. However, whenever I apply available update 5, it breaks the website. The error message I receive is the following.

Detailed Error Information:

Module                     IsapiModule

Notification               ExecuteRequestHandler

Handler                    ISAPI-dll

Error Code               0x00000000

Requested URL       https://website:443/jakarta/isapi_redirect.dll

Physical Path           D:\Programs\ColdFusion11\config\wsconfig\1\isapi_redirect.dll

Logon Method          Anonymous

Logon User              Anonymous

I’ve removed and re-added the handler. I’ve removed the website from the CF console and re-added it. Nothing seems to fix it.