Table 'metalurg_site.tbo_video' doesn't exist | Erro número: 1146

Query inválida:
( SELECT titulo, "noticias" categoria, titulo_url, resumo, UNIX_TIMESTAMP(datahora) timestamp FROM tbo_noticia WHERE status = "on" )
UNION
( SELECT titulo, "videos" categoria, titulo_url, descricao resumo, UNIX_TIMESTAMP(datahora) timestamp FROM tbo_video WHERE status = "on" )
ORDER BY timestamp DESC LIMIT 20