Community forums seizing up every night 03:00-10:00

Since the most recent Community forums "redesign" 2-3 years ago (?), there has been apparent IT housekeeping on the first of every month rendering the forums almost inaccessible from 03:00 to 10:00 (approx).  This has been very inconvenient and disruptive but one imagines it must be unavoidable.

However, for at least the past 5 consecutive nights/mornings, the exact same thing has been happening, and as it cannot be that the RSPB wants to restrict access to the forums until after 10 o'clock in the morning, I thought I should alert the tech people to the problem.