Hi. This eve, sometimes, when I open notifications bar, I can see a message "Can't fetch notifications because $1", or something like that. Anytime when I open "Special:Notifications", I get "Database error":
A database query error has occurred. This may indicate a bug in the software.
Function: IndexPager::buildQueryInfo (NotificationPager)
Error: 1146 Table 'hewiki.echo_notification' doesn't exist (10.64.16.28)