Got this error with my Epson 2250. The projector itself is fine, I can still use the other hdmi port without issue, but it looks like the built-in streaming stick doesnt work,
Epson EB-2250U ab 1.049,00 € (Juni 2023 Preise) | Preisvergleich bei idealo.de
Lichtstarker Full HD-Projektor für Bildungseinrichtungen | Pfau Management