# Scan class deleted but is still executing in the diagnosis page

**URL:** <https://forum.inductiveautomation.com/t/scan-class-deleted-but-is-still-executing-in-the-diagnosis-page/26310>\
**Category:** Ignition\
**Created:** [July 5, 2019, 8:34am UTC](https://forum.inductiveautomation.com/t/scan-class-deleted-but-is-still-executing-in-the-diagnosis-page/26310 "2019-07-05T08:34:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![nagewaza1009](https://avatars.discourse-cdn.com/v4/letter/n/838e76/32.png) [@nagewaza1009](https://forum.inductiveautomation.com/u/nagewaza1009)\
**Post date:** [July 5, 2019, 8:34am UTC](https://forum.inductiveautomation.com/t/scan-class-deleted-but-is-still-executing-in-the-diagnosis-page/26310/1 "2019-07-05T08:34:52Z")

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Hi everyone,

I recently deleted some scan classes because the total number of executions and throughput were insanely high (and made my system super slow). I also deleted all the Tags that were using these scan classes (and i checked by exporting the tree to csv and looking for the scan class in the document).

The problem is that if i go in the diagnosis page of the Gateway, the total number of executions for theses scan classes (last 4 on the screenshot below) is still increasing…

 ![Capture10](https://us1.discourse-cdn.com/inductiveautomation/original/2X/7/7b2d16eba042b28c95d16afa674ce627a1df8c73.jpeg)

Also, in the Logs page, i have errors concerning the scan classe executions of these class as you can see below.

 ![Capture11](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/b677cbd9752bbf289d104f5d7cd58558358e0f78.jpeg)

Anyone has been faced with such a problem before ?

Thank you in advance,