Redwood-AutoComplete Issue on Change Working Hours Screen:Error"Couldn't change the WhenandWhy data"

Please,

The autoComplete rule we have on this page works as follows:
If a date is selected that is not the first day of the following month, it shows an error message stating the need to change to the first day of the month.

However, along with this message, part of the path where the autoComplete is running is showing up, followed by the error message: "Couldn't change the WhenandWhy data." We need only the defined error message to be displayed, as it occurs on the responsive screen.

Path to access the screen that has the error message from the autoComplete: