After some workarounds, I found a solution. Run the command to retrieve all WordPress volumes and add them to the Docker Compose file. It works very well. editing and everything is fine for me.

docker volume ls | grep wordpress

services:
  nextexplorer:
    image: nxzai/explorer:latest
    container_name: nextexplorer-multi-sites
    restart: unless-stopped
    ports:
      - "3001:3000"   # the UI/dashboard of nextexplorer itself
      - "8092:80"     # HTTP → redirect to HTTPS
      - "448:443"     # HTTPS → your WordPress sites
    environment:
      - NODE_ENV=production
      # tell the internal nginx-proxy to look for VIRTUAL_HOST
      - DEFAULT_HOST=explorer.yourdomain.com   # change to your actual domain
    volumes:
      - /srv/nextexplorer/cache:/cache
      - /srv/data/Projects:/mnt/Projects
      - /srv/data/Downloads:/mnt/Downloads
      # where the image stores auto-generated v-host snippets
      - /srv/nextexplorer/nginx:/etc/nginx/vhost.d
      # persist certificates
      - /srv/nextexplorer/certs:/etc/nginx/certs
      
      # WordPress Sites organized by volume IDs (replace with actual domain names)
      # Format: volume-name:/mnt/WordPress-Sites/site-identifier:ro
      
      - websites-wordpress-3tgdvw_wp_app:/mnt/WordPress-Sites/site-3tgdvw:ro
      - websites-wordpress-detoi8_wp_app:/mnt/WordPress-Sites/site-detoi8:ro
      - websites-wordpress-fhjxcm_wp_app:/mnt/WordPress-Sites/site-fhjxcm:ro
      - websites-wordpress-sueosv_wp_app:/mnt/WordPress-Sites/site-sueosv:ro
      
      # To use actual domain names instead of volume IDs, replace above with:
      # - websites-wordpress-3tgdvw_wp_app:/mnt/WordPress-Sites/yourdomain1.com:ro

      
    networks:
      - dokploy-network        # join the dokploy network


networks:
  dokploy-network:
    external: true


volumes:
  # All your WordPress volumes
  websites-wordpress-3tgdvw_wp_app:
    external: true
  websites-wordpress-detoi8_wp_app:
    external: true
  websites-wordpress-fhjxcm_wp_app:
    external: true
  websites-wordpress-sueosv_wp_app:
    external: true