Ernest is unable to voice himself from the otherworld in Netflix supernatural comedy We Have A Ghost, and there is a touching explanation as to why. We Have A Ghost features a family that discovers their house is haunted by Ernest the ghost, but instead of abandoning their move, the Presleys decide to capitalize on the viral sensation their predicament has become. Unbeknownst to the family, the budding friendship between Ernest and their younger son, Kevin, uncovers deep-rooted secrets that determine the fate of their spectral occupant.
https://screenrant.com/we-have-ghost-david-harbour-ernest-no-talking-reason/