My garmin fenix 5 did not get 12.30 update

Hello, as I said in the title, I don”t manage to update my watch to 12.30 firmware version, now it has 12.51 version. Any ideea how to do it without a rollback?... I”m sick of making tons of rollbacks and loosing all data from the watch any time Garmin fails an decent software update! P.S I have this beautifull error message, any ideea what it means?...software error or sensor error? ciq.forums.garmin.com/.../1448836.jpg