From ab3b15e13e67e621c43379b4b1ea131db98221d4 Mon Sep 17 00:00:00 2001
From: Zanz2 <zan.zagar@hotmail.com>
Date: Tue, 21 Aug 2018 13:26:16 +0200
Subject: [PATCH] Found the bug and fixed it

---
 app/controllers/steps_controller.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/controllers/steps_controller.rb b/app/controllers/steps_controller.rb
index 85fa0daa3..18be89850 100644
--- a/app/controllers/steps_controller.rb
+++ b/app/controllers/steps_controller.rb
@@ -515,6 +515,7 @@ class StepsController < ApplicationController
     params[:tables_attributes].each do |_, table|
       next unless table['_destroy']
       table_to_destroy = Table.find_by_id(table['id'])
+      next if table_to_destroy.nil?
       table_to_destroy.report_elements.destroy_all
     end
   end