chore: fixed refactor errors

app/controllers/impersonate_controller.rb

@@ -145,7 +145,7 @@ def impersonate
 
   def real_user(username)
     if User.anonymized_view?(session[:ip])
-      user = User.real_user_from_anonymized_name(username)
+      user = User.real_user_from_anonymized_username(username)
     else
       user = User.find_by(username: username)
     end

app/controllers/invitations_controller.rb

@@ -81,7 +81,7 @@ def create_utility
       prepared_mail = MailerHelper.send_mail_to_user(@user, 'Invitation Received on Expertiza', 'invite_participant_to_team', '')
       prepared_mail.deliver
     end
-    ExpertizaLogger.info LoggerMessage.new(controller_name, @student.username, "Successfully invited student #{@user.id}", request)
+    ExpertizaLogger.info LoggerMessage.new(controller_name, @student.name, "Successfully invited student #{@user.id}", request)
   end
 
   def check_user_before_invitation

app/helpers/conference_helper.rb

@@ -36,7 +36,7 @@ def get_redirect_url_link
   end
 
   def create_author
-    params[:user][:name] = params[:user][:email] unless !params[:user][:name].nil? && !params[:user][:name].empty?
+    params[:user][:username] = params[:user][:email] unless !params[:user][:name].nil? && !params[:user][:name].empty?
     is_author = true
     # Assign all user params for creating author using assign_user_params function
     @user = assign_user_params(is_author)