Deleted user's profile from my treebook and now nothing works

Hi, I am going through Build a simple RoR application videos. However, I am currently going over the "Creating a profile page" videos and I was not sure about the profile name of the user I had registered, therefore I deleted it so that I can create a new one and continue with my videos. After I deleted the user I got :

NoMethodError in Statuses#index

Showing /var/lib/stickshift/5166c81be0b8cdcfca00007a/app-root/data/469951/app/views/statuses/index.html.erb where line #9 raised:

undefined method `full_name' for nil:NilClass Extracted source (around line #9):

6: 7: <% @statuses.each do |status| %> 8: <div class="status"> 9: <strong><%= status.user.full_name %></strong> 10: <p><%= status.content %></p> 11: <div class="meta"> 12: <%= link_to time_ago_in_words(status.created_at) + " ago", status %> Rails.root: /var/lib/stickshift/5166c81be0b8cdcfca00007a/app-root/data/469951

Application Trace | Framework Trace | Full Trace app/views/statuses/index.html.erb:9:in block in _app_views_statuses_index_html_erb__565064848992858053_36962300' app/views/statuses/index.html.erb:7:ineach' app/views/statuses/index.html.erb:7:in _app_views_statuses_index_html_erb__565064848992858053_36962300' app/controllers/statuses_controller.rb:9:inindex' Request

Parameters:

None Show session dump

Show env dump

Response

Headers:

None

this error and I cannot start the server again, nor can I do anything. Can you please tell me how to fix it and continue with my videos. Thanks in advance.

P.S. I believe I should delete the statuses from the db since they have all been created by a user who was deleted. However, I am not sure I should and I do not know how to do this.

Regards