# Elasticsearch Engineer 1 - On Demand training material error **URL:** \ **Category:** Elastic Training\ **Created:** [March 31, 2020, 7:59am UTC](https://discuss.elastic.co/t/elasticsearch-engineer-1-on-demand-training-material-error/225812 "2020-03-31T07:59:58Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Anton\_H](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/anton_h/32/10200_2.png) [@Anton\_H](https://discuss.elastic.co/u/Anton_H)\ **Post date:** [March 31, 2020, 7:59am UTC](https://discuss.elastic.co/t/elasticsearch-engineer-1-on-demand-training-material-error/225812/1 "2020-03-31T07:59:58Z")
In the On-Demand training there is an error (I presume) There is a data table about a blog and a reference to a JSON document. There is a wrong association between the table column name and JSON fields. ![image](https://us1.discourse-cdn.com/elastic/original/3X/0/b/0b0b2bbccb0f058b9a85309b3b356d8d4507f1f6.png) ---
**Author:** ![dschneiter](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dschneiter/32/46162_2.png) [@dschneiter](https://discuss.elastic.co/u/dschneiter)\ **Post date:** [March 31, 2020, 8:02am UTC](https://discuss.elastic.co/t/elasticsearch-engineer-1-on-demand-training-material-error/225812/2 "2020-03-31T08:02:19Z")
Thanks for reporting it @Anton_H . It seems as the empty cell got dropped and everything moved to the left. Will create an issue about that. Daniel ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 30, 2020, 8:02am UTC](https://discuss.elastic.co/t/elasticsearch-engineer-1-on-demand-training-material-error/225812/3 "2020-04-30T08:02:20Z")
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