Unhandled Runtime Errors

[hack3rcon]

Summary

Hello,
Can someone explain to me why I am getting the Unhandled Runtime Errors error? Is it related to directory permissions, caching, modules, etc.?

I use Docker and Dockerfile is:

FROM node:23-alpine

# Create non-root user with configurable UID/GID
ARG USER_ID=999
ARG GROUP_ID=995

RUN addgroup -g ${GROUP_ID} appuser && \
    adduser -S -u ${USER_ID} -G appuser appuser

WORKDIR /app

COPY package*.json ./

# Install dependencies as root first
RUN npm install -g npm@latest && \
    npm install --legacy-peer-deps

# Create .next directory with correct permissions
RUN mkdir -p /app/.next && \
    chown -R ${USER_ID}:${GROUP_ID} /app/.next

COPY --chown=${USER_ID}:${GROUP_ID} . .

# Ensure proper permissions for node_modules
RUN chown -R ${USER_ID}:${GROUP_ID} /app/node_modules

USER ${USER_ID}

EXPOSE 3000

CMD ["npm", "run", "dev"]

I would be grateful if someone could explain where the problem is.

Thank you.

Additional information

No response

Example

No response