There are a few services affected by this error. One of them is Safari. The Safari browser can be blocked by this error message. Here is how to fix the issue:
Begin by pressing the "command" key and the "space bar" at the same time. The window that pops up should look like this:
In "spotlight search", type "terminal" and press the "enter" or "return" key.
Type the following commands in terminal:
rm -r *
This will delete all the saved configurations in the "keychains" folder:
Restart the computer. After this step, you should be able to use the computer without getting the error again.