# Problem when trying configurating cache
**URL:** https://forum.mautic.org/t/problem-when-trying-configurating-cache/3582
**Category:** Product Support
**Created:** [April 25, 2016, 3:07am UTC](https://forum.mautic.org/t/problem-when-trying-configurating-cache/3582 "2016-04-25T03:07:56Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Blancher](https://forum.mautic.org/u/Blancher)
#### Post date: [April 25, 2016, 3:07am UTC](https://forum.mautic.org/t/problem-when-trying-configurating-cache/3582/1 "2016-04-25T03:07:56Z")
Hi,
I was working on a landing page for Mautic.
I was trying it on gtmetrix en pagespeed insight de google and wanted to configure browser cache and page speed.
I’m on [Arrvixe.com](http://Arrvixe.com) and it’s a windows server. and I enable a remote IIS Management.
But since I enable it, I have this error on Mautic:
Fatal error: Class ‘SymfonyComponentConsoleOutputOutput’ not found in E:HostingSpacesgradiwebmarketing.gradiconsulting.comwwwrootvendorsymfonyconsoleSymfonyComponentConsoleOutputOutputInterface.php on line 18
And even if I disable it, it still there.
Anyone have an idea??
Thx
---
### Author:  [@Blancher](https://forum.mautic.org/u/Blancher)
#### Post date: [April 25, 2016, 3:07am UTC](https://forum.mautic.org/t/problem-when-trying-configurating-cache/3582/2 "2016-04-25T03:07:56Z")
Hi,
I was working on a landing page for Mautic.
I was trying it on gtmetrix en pagespeed insight de google and wanted to configure browser cache and page speed.
I’m on [Arrvixe.com](http://Arrvixe.com) and it’s a windows server. and I enable a remote IIS Management.
But since I enable it, I have this error on Mautic:
Fatal error: Class ‘SymfonyComponentConsoleOutputOutput’ not found in E:HostingSpacesgradiwebmarketing.gradiconsulting.comwwwrootvendorsymfonyconsoleSymfonyComponentConsoleOutputOutputInterface.php on line 18
And even if I disable it, it still there.
Anyone have an idea??
Thx