# Upgrade to enterprise version fails

**URL:** <https://forum.pydio.com/t/upgrade-to-enterprise-version-fails/1095>\
**Category:** Pydio 8\
**Created:** [May 14, 2018, 5:36pm UTC](https://forum.pydio.com/t/upgrade-to-enterprise-version-fails/1095 "2018-05-14T17:36:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![anon41144902](https://avatars.discourse-cdn.com/v4/letter/a/71c47a/32.png) [@anon41144902](https://forum.pydio.com/u/anon41144902)\
**Post date:** [May 14, 2018, 5:36pm UTC](https://forum.pydio.com/t/upgrade-to-enterprise-version-fails/1095/1 "2018-05-14T17:36:13Z")

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Hello,  
when I try to upgrade to the enterprise version, I get the error "file\_get\_contents( …url… ):failed to open stream: HTTP request failed! HTTP/1.1 401 Unauthorized  
API key+secret are ok.  
Update URL: [https://update.pydio.com/auth/](https://update.pydio.com/auth/)  
Release-channel “Install enterprise version”.  
Curret Pydio version 8.0.2 (Ubuntu 16.04 LTS)  
What can I try to resolve this problem?  
Many thanks,  
Thomas

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**Author:** ![zayn](https://avatars.discourse-cdn.com/v4/letter/z/a87d85/32.png) [@zayn](https://forum.pydio.com/u/zayn)\
**Post date:** [May 21, 2018, 7:41am UTC](https://forum.pydio.com/t/upgrade-to-enterprise-version-fails/1095/2 "2018-05-21T07:41:30Z")

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Hi,  
to make sure the first step are right did you fill it as seen in this [screenshot](https://prnt.sc/jkj64w),  
if it’s still doing the error you could empty the cache located in `/pydio/data/cache` and remove the `plugins_` files, you could also restart your webserver and php.