# Need help, The key authorization file from the server did not match this challenge **URL:** \ **Category:** Help\ **Created:** [August 15, 2017, 8:35am UTC](https://community.letsencrypt.org/t/need-help-the-key-authorization-file-from-the-server-did-not-match-this-challenge/40202 "2017-08-15T08:35:55Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![cxywind](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/cxywind/32/15580_2.png) [@cxywind](https://community.letsencrypt.org/u/cxywind)\ **Post date:** [August 15, 2017, 8:35am UTC](https://community.letsencrypt.org/t/need-help-the-key-authorization-file-from-the-server-did-not-match-this-challenge/40202/1 "2017-08-15T08:35:55Z")
This was working fine for me, but this time it upgrade and the error occor: letsencrypt-vesta admin [websuncloud.com](http://websuncloud.com) Upgrading certbot-auto 0.16.0 to 0.17.0… Replacing certbot-auto… Creating virtual environment… Installing Python packages… Installation succeeded. Saving debug log to /var/log/letsencrypt/letsencrypt.log Obtaining a new certificate Performing the following challenges: http-01 challenge for [websuncloud.com](http://websuncloud.com) http-01 challenge for [www.mactron-tech.com](http://www.mactron-tech.com) Using the webroot path /etc/letsencrypt/webroot for all unmatched domains. Waiting for verification… Cleaning up challenges Failed authorization procedure. [websuncloud.com](http://websuncloud.com) (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: The key authorization file from the server did not match this challenge [\_xJOqpLtXasTEC\_WHX-utiq4b7066m9tXWitNQqv\_2c.kQnMH7lTgNDfMbV\_OJk9NPmNNUti6oizosiK7czFLcc] != [\_xJOqpLtXasTEC\_WHX-utiq4b7066m9tXWitNQqv\_2c.hovAWj-JA-qGflD8og0oLi8TOqzRrBJCc4BHDAfJnjs], [www.mactron-tech.com](http://www.mactron-tech.com) (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: The key authorization file from the server did not match this challenge [OEqvuy-vnmN\_SFUiKBO9oUWAvq8XTXgJnVICLmFUg-I.kQnMH7lTgNDfMbV\_OJk9NPmNNUti6oizosiK7czFLcc] != [OEqvuy-vnmN\_SFUiKBO9oUWAvq8XTXgJnVICLmFUg-I.hovAWj-JA-qGflD8og0oLi8TOqzRrBJCc4BHDAfJnjs] IMPORTANT NOTES: - The following errors were reported by the server: ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [August 15, 2017, 2:25pm UTC](https://community.letsencrypt.org/t/need-help-the-key-authorization-file-from-the-server-did-not-match-this-challenge/40202/2 "2017-08-15T14:25:56Z")
Did you specify an alias for the acme-challenges in your vhost files? And in any case, can you show the vhost files for those two domains? ---
**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\ **Post date:** [September 14, 2017, 2:26pm UTC](https://community.letsencrypt.org/t/need-help-the-key-authorization-file-from-the-server-did-not-match-this-challenge/40202/3 "2017-09-14T14:26:03Z")
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