There is a button E (Event), press it and select Search by date, enter the date and press OK and everything looks normal.
Collided with other damages caused by this registrar videoviewer no buttons sound, ie there is no way to listen through videoviewer, after the first connection in the connection settings are automatically replaced by the video / audio on the video and there is no way to reproduce sound.
Please help fix the problem the customer complains.
thanks for any replies.