If you reinstalled the original navigation unit, then disconnect the 12-volt battery for a few minutes. Then reconnect the battery and clear all of the error codes. It may not be possible to clear the error codes if the navigation unit is different from the original.
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL Plus purchased 8/10/2019