Edit field is blank (rails 6.1.4) - ruby-on-rails

Question

I am new to Ruby on Rails and we have a project called TaskApp.
It that has 2 models: Category, Task.
Category has many tasks and Task belongs to Category.
When I go from tasks index to edit task, I am getting the edit view with blank fields.
Please find relevant codes below.
I am grateful for any advise to get me to resolve this.
routes.rb
Rails.application.routes.draw do
devise_for :users, controllers: { registrations: 'registrations' }
get 'home/index'
root 'home#index'
resources :categories do
resources :tasks
end
end
tasks_controller.rb
class TasksController < ApplicationController
before_action :authenticate_user!
before_action :set_category, except: %i[index edit]
before_action :set_task, only: %i[show update destroy]
def index
#tasks = Task.where(user_id: current_user.id, deadline: Time.zone.now.beginning_of_day..Time.zone.now.end_of_day).order(priority: :asc)
end
def new
#task = #category.tasks.build
end
def show
end
def create
#task = #category.tasks.create(task_params.merge(user_id: current_user.id))
respond_to do |format|
if #task.save
format.html { redirect_to #task.category, notice: "Task was successfully created." }
format.json { render :show, status: :created, location: #task.category }
else
format.html { redirect_to #task.category, notice: "Invalid inputs." }
format.json { render json: #task.errors, status: :unprocessable_entity }
end
end
end
def edit
#category = Category.find(params[:category_id])
#task = #category.tasks.find(params[:id])
end
def update
respond_to do |format|
if #task.update(task_params)
format.html { redirect_to #task.category, notice: 'Task was successfully updated.' }
format.json { render :show, status: :ok, location: #task }
else
format.html { render :edit }
format.json { render json: #task.errors, status: :unprocessable_entity }
end
end
end
def destroy
#task.destroy
respond_to do |format|
format.html { redirect_to #task.category, notice: 'Task was successfully destroyed.' }
format.json { head :no_content }
end
end
private
def set_category
#category = Category.find(params[:category_id])
end
def set_task
#task = #category.tasks.find(params[:id])
end
def task_params
params.require(:task).permit(:name, :description, :priority, :deadline, :completed, :user_id, :category_id)
end
end
.../tasks/views/edit.html.erb
<div>
<table>
<thead>
<tr>
<th>Name</th>
<th>Description</th>
<th>Priority</th>
<th>Deadline</th>
<th>Completed</th>
<th>Action</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<% #category.tasks.each do |task| %>
<% if task.user_id == current_user.id %>
<tr>
<td><%= link_to task.name, [task.category, task] %></td>
<td><%= task.description %></td>
<td><%= task.priority %></td>
<td><%= task.deadline.strftime("%d %b %Y") %></td>
<td><%= task.completed %></td>
<td><%= link_to 'Edit', edit_category_task_path(task.category, task) %></td>
<td><%= link_to 'Delete', [task.category, task],
method: :delete,
data: { confirm: 'Are you sure?' } %>
</td>
</tr>
<% end %>
<% end %>
</tbody>
</table>
</div>