I'm having trouble displaying comments on my Rails Blog - html

Question

I'm currently working on my Rails Blog. While the development is coming along nicely, I've hit a roadblock in the comment.
Every time I try to leave a test comment, I always get "rollback transaction" just before the comment gets saved.
Here's what happens when I create a comment.
Here's the code for looking at blog entry:
post/show.html.erb
<h1 class="title">
<%= #post.title %>
</h1>
<h2>Authored by:
<%= #post.user.username%>
</h2>
<p>
<%=raw #post.content %>
</p>
<div class="comments">
<h3 class="is-3">Comments</h3>
<%if #post.comments.count == 0%>
<strong>There are no comments on this post. Feel free to send one!</strong><br/>
<% else %>
<%= render #post.comments %>
<% end %>
<%if !user_signed_in? %>
<strong>Yo, if you wanna comment on my site, either <%= link_to 'Sign up', new_user_registration_path %> or <%= link_to 'Log in', new_user_session_path %></strong>
<% else %>
<%= render partial: "comments/form", locals: {comment: #post.comments.new} %>
<% end %>
</div>
</div>
<br>
<% if user_signed_in? %>
<div class="functions">
<%= link_to "Update", edit_post_path(#post) if policy(#post).update? do%>
<i class="fa fa-edit editpage fa-3x"></i>
<% end %>
<%= link_to "Delete", #post, :confirm => "Are you sure you want to delete this post?", :method => :delete if policy(#post).destroy? do%>
<i class="fa fa-trash deletepage fa-3x"></i>
<% end %>
</div>
<% end %>
<%= link_to 'Back to the main page', root_path %>
In case you're curious, here's what the comment partial looks like:
<strong><%= #post.comment.user.username %> says:</strong><br>
<%=#post.comment.content %>
<p>
<=time_ago_in_words(comment.created_at) %>
</p>
Can anyone help me figure out why is it that when I create a comment, it rolls back the transaction? I'll provide more information if required.
Edit: Here's the Comments Controller for my rails blog.
class CommentsController < ApplicationController
before_action :set_post
def create
set_post
# Create associated model, just like we did in the console before
#comment = #post.comments.create(comment_params)
# We want to show the comment in the context of the Post
#comment.post_id = #post.post_id
#comment.user_id = current_user.user_id
#comment.save
redirect_to #post
end
def update
#comment = set_comment
#comment.update(comment_params)
redirect_to #post
end
def destroy
#comment = set_comment
#comment.destroy
redirect_to #post
end
private
def comment_params
params.require(:comment).permit(:content)
end
def set_post
#post = Post.friendly.find(params[:post_id])
end
def set_comment
#comment = Comment.find(params[:id])
end
end
Comment Model:
class Comment < ApplicationRecord
belongs_to :post
belongs_to :user
end
Also, the Comment form
<strong><%= #post.comment.user.username %> says:</strong><br>
<%=#post.comment.content %>
<p><= time_ago_in_words(comment.created_at) %></p>