Can't create a space after update to 6.15.2 - An unknown server error has occurred.
Asked by Rick:

This week we updated our Confluence installation from 6.6 to 6.15.2 for Data Center.  
Everything seemed to be working fine, untill I tried to create an space.  
The following error appeared:  

![Screen Shot 2018-09-29 at 11.09.33 PM.png](/t5/image/serverpage/image-id/53398iDCD2A7C0D4EE76F9/image-size/large?v=v2&px=999 "Screen Shot 2018-09-29 at 11.09.33 PM.png")

Logging:

```
019-05-03 10:21:04,335 WARN [https-jsse-nio-8443-exec-16] [common.security.jersey.XsrfResourceFilter] passesAdditionalBrowserChecks Additional XSRF checks failed for request: https://[confluence-dns-name/rest/analytics/1.0/publish/bulk , origin: https://[confluenceserver.domain]:8443 , referrer: https://[confluenceserver.domain]:8443/ , credentials in request: true , allowed via CORS: false
-- referer: https://[confluenceserver.domain]:8443/ | url: /rest/analytics/1.0/publish/bulk | traceId: f1f5a8281518b020 | userName: {adminuser]
2019-05-03 10:21:05,942 WARN [https-jsse-nio-8443-exec-13] [confluence.impl.hibernate.ConfluenceHibernateTransactionManager] doRollback Performing rollback. Transactions:
->[PluginReadWriteTx]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT (Session #1836970420)
-- referer: https://[confluenceserver.domain]:8443/| url: /rest/create-dialog/1.0/space-blueprint/dialog/web-items | traceId: b4ad19d41136f385 | userName: {adminuser]
```

<br />

I tried the fix stated in <https://community.atlassian.com/t5/Confluence-questions/Unknown-server-error-when-trying-to-create-a-space/qaq-p/903634>  

I deleted the following tables and cleared the cache.

```

DROP TABLE "AO_54C900_SPACE_BLUEPRINT_AO";
DROP TABLE "AO_54C900_C_TEMPLATE_REF";
DROP TABLE "AO_54C900_CONTENT_BLUEPRINT_AO";?
```

But the problem still persists.  

Any further ideas?


Answers:
author: Christopher Jaksch
body: Hi [@Rick](/t5/user/viewprofilepage/user-id/3126805) ,

welcome on board of Atlassian Community.

It seems like you're running into this bug:

* [https://jira.atlassian.com/browse/CONFSERVER-57943](https://jira.atlassian.com/browse/CONFSERVER-57943?src=confmacro&_ga=2.265290895.144023408.1556812916-599540014.1512122069)

Atlassian adviced to update to Confluence 6.15.3, but this release is no longer available for download due to another bug.

* <https://confluence.atlassian.com/doc/issues-resolved-in-6-15-3-969523133.html>

I'd recommend you to reach out directly to Atlassian support ([https://support.atlassian.com](https://support.atlassian.com/)) as quick as possible.

I hope that helps you.

Good luck and best wishes  
Chris  
STAGIL

comments: author: Rick
body: Hi Christopher,  

thank you for your reply.  
I guess we'll wait for a new release. In the meantime we'll use the workaround with a direct URL to creat the space (/spaces/createspace-start.action)


author: Fabio Racobaldo _Herzum_
body: Hi [@Rick](/t5/user/viewprofilepage/user-id/3126805) ,

it seems that your issue can be resolved using the following approach <https://confluence.atlassian.com/confkb/after-upgrading-confluence-you-are-unable-to-create-new-pages-or-spaces-785457379.html>

Could you try that?

Fabio

comments: author: Rick
body: Hi Fabio, thanks for your reply. Our server.xml already contains the parameters.