this dockerfile is generating an error why?

FROM node:19-alpine as builder

WORKDIR /usr/src/app

COPY package*.json ./

RUN npm install

COPY .env ./
COPY prisma/schema.prisma ./

RUN npx prisma generate

COPY . .
WORKDIR /usr/src/app
ENV DISABLE_REDIS=true
RUN npm run build

FROM node:19-alpine

WORKDIR /usr/src/app

COPY --from=builder /usr/src/app/.svelte-kit/output .
COPY --from=builder /usr/src/app/package.json .
COPY --from=builder /usr/src/app/node_modules ./node_modules

EXPOSE 8080

ENV HOST=0.0.0.0


CMD ["npm", "run", "preview"]

exec /usr/local/bin/docker-entrypoint.sh: exec format error
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence