Ubuntu – Ruby on Rails 7 – Getting a Failed to open TCP connection to localhost:9200 (Connection refused – connect(2) for 127.0.0.1:9200)

I am using WSL and the Ubuntu app.
I am using the searchkick and elasticsearch gems.
I have TomSelect installed as well.
Ruby on Rails 7.

ISSUES:

When I type: sudo service elasticsearch start

I get: elasticsearch: unrecognized service

However, when I go to the navbar on the contacts page and try to search for a contact, the search works fine. So it seems elasticsearch is installed via the gemfile.

But when I go to the contacts page, and click ‘new contact’ and try to submit that form, I keep getting this Faraday error:

However, sometimes, even though I get that error, some of the contacts appear to end up being saved. I’m not sure why or how, but when I got to the contacts index, some of the new contacts actually end up there.

My contacts controller looks like this:

class ContactsController < ApplicationController
  before_action :set_contact, only: %i[ show edit update destroy ]

  # GET /contacts or /contacts.json
  def index
    @contacts = current_user.contacts

    #Ransack variables for search
    @query = Contact.ransack(params[:q])
    @results = @query.result(distinct: true)
  end

  # GET /contacts/1 or /contacts/1.json
  def show
  end

  # GET /contacts/new
  def new
    @contact = Contact.new
  end

  # GET /contacts/1/edit
  def edit
  end

  # POST /contacts or /contacts.json
  def create
    @contact = Contact.new(contact_params)
    @contact.user = current_user

    respond_to do |format|
      if @contact.save
        format.html { redirect_to contact_url(@contact), notice: "Contact was successfully created." }
        format.json { render :show, status: :created, location: @contact }
      else
        format.html { render :new, status: :unprocessable_entity }
        format.json { render json: @contact.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /contacts/1 or /contacts/1.json
  def update
    respond_to do |format|
      if @contact.update(contact_params)
        format.html { redirect_to contact_url(@contact), notice: "Contact was successfully updated." }
        format.json { render :show, status: :ok, location: @contact }
      else
        format.html { render :edit, status: :unprocessable_entity }
        format.json { render json: @contact.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /contacts/1 or /contacts/1.json
  def destroy
    @contact.destroy

    respond_to do |format|
      format.html { redirect_to contacts_url, notice: "Contact was successfully destroyed." }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_contact
      @contact = Contact.find(params[:id])
    end

    # Only allow a list of trusted parameters through.
    def contact_params
      params.require(:contact).permit(:first_name, :last_name, :last_known_country, 
                                      :last_known_city, :mobile_phone_1, :mobile_phone_2, 
                                      :office_phone_1, :office_phone_2, :home_phone, 
                                      :other_phone, :email_1, :email_2, :email_3, 
                                      :email_4, :email_5, :website_1, :website_2, 
                                      :website_3, :website_4, :website_5, :website_6, 
                                      :website_7, :website_8, :contact_apps, :birthday, 
                                      :address_1, :address_2, :how_we_met, :things_I_like, 
                                      :best_memories, :areas_for_improvement, :notes, 
                                      category_ids:[], contact_group_ids:[], 
                                      contact_type_ids:[])
    end
end

For added context, sometimes I get that Faraday error, but at other times, the form itself (for a new contact) doesn’t even submit. No JS errors. Nothing in the network tab. The ‘submit’ button just doesn’t seem to do anything.

So I’m getting one of two errors: 1) Faraday error, or 2) the form itself doesn’t submit (yet every other form on the application works fine).

Thank you for any guidance!

EDIT: Added contact.rb

class Contact < ApplicationRecord

    belongs_to :user

    has_many :interactions

    has_many :contact_categories, dependent: :destroy
  has_many :categories, through: :contact_categories

    has_many :contact_groupings, dependent: :destroy
    has_many :contact_groups, through: :contact_groupings

    has_many :contact_typings, dependent: :destroy
    has_many :contact_types, through: :contact_typings

  #Automatically adds each new contact as Recently Added
  after_create :assign_to_default_category

  def assign_to_default_category
    default_category = user.categories.find_by(id: 1)

    if default_category
      categories << default_category
    else
      # Handle the case where the default category with ID 1 is not found
      # You may want to log a warning or handle it in a way that fits your application
    end
  end

  # Uncomment to make the search bar work; but it keeps causing faraday issues on new contacts
    def self.ransackable_associations(auth_object = nil)
    ["category", "contact_groupings", "contact_groups", "contact_categories", 
      "contact_types", "contact_typings", "user"]
  end

  def self.ransackable_attributes(auth_object = nil)
    ["address_1", "address_2", "areas_for_improvement", "best_memories", 
      "birthday", "contact_apps", "created_at", "email_1", "email_2", 
      "email_3", "email_4", "email_5", "first_name", "home_phone", "how_we_met", 
      "id", "last_known_city", "last_known_country", "last_name", "mobile_phone_1", 
      "mobile_phone_2", "notes", "office_phone_1", "office_phone_2", "other_phone", 
      "points", "things_I_like", "updated_at", "user_id", "website_1", "website_2", 
      "website_3", "website_4", "website_5", "website_6", "website_7", "website_8"]
  end

  searchkick text_middle: [:first_name, :last_name, :last_known_country, :last_known_city]

end