"Oops - an error has occured": Confluence not working any more. PDO Sqlite Problem (php5-sqlite)?
Asked by Sebastian Buckpesch:

Hi, {#toc-hId-1874462626}
=========================

out of a sudden my Confluence is not working any more. I already checked the DB Access Data as I found solutions for a problem in LazyReference.java:152. The DB Access is correct, so this can't be the problem. What I did is I installed the "php5-sqlite" package. After that this Error message appears, when I enter my Confluence Url. {#toc-hId--677694335}
===================================================================================================================================================================================================================================================================================================================================================================

Any proposals, what could be wrong here?

Thanks a lot,  
Sebastian

<br />

[![logo](https://www.app-arena.com/docs/images/logo/confluence_48.gif "Confluence")](https://www.app-arena.com/docs/)System Error {#toc-hId--1487040961}
========================================================================================================================================================

A system error has occurred --- our apologies!

For immediate troubleshooting, consult our **[knowledge base](http://confluence.atlassian.com/display/CONFKB/Confluence+Knowledge+Base+Home)** for a solution.

If you would like to receive support from Atlassian's support team, ask your **[Confluence administrator](https://www.app-arena.com/docs/contactadministrators.action)** to create a support issue on [Atlassian's support system](http://support.atlassian.com/) with the following information:

1. a description of your problem and what you were doing at the time it occurred
2. a copy of the error and system information found below
3. a copy of the application logs (if possible).

Your Confluence administrator can use the **[support request form](https://www.app-arena.com/docs/admin/raisesupportrequest.action)** to create a support ticket which will include this information.

We will respond as promptly as possible.  
Thank you!

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The SystemInformationService could not be retrieved from the container. Therefore very limited information is available in this error report.   
The SystemInformationService could not be retrieved due to the following error: java.lang.NullPointerException

### Cause {#toc-hId--137257636}

com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException  
at com.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:152)

caused by: java.lang.NullPointerException  
at com.atlassian.spring.container.ContainerManager.getComponent(ContainerManager.java:33)

#### Stack Trace:\[hide\] {#toc-hId-1409039194}

```
com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException	at com.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:152)	at com.atlassian.util.concurrent.LazyReference.get(LazyReference.java:115)	at com.atlassian.confluence.setup.ConfluenceEncodingFilter.getGlobalSettings(ConfluenceEncodingFilter.java:45)	at com.atlassian.confluence.setup.ConfluenceEncodingFilter.getEncodingInternal(ConfluenceEncodingFilter.java:35)	at com.atlassian.confluence.setup.ConfluenceEncodingFilter.getEncoding(ConfluenceEncodingFilter.java:27)	at com.atlassian.core.filters.encoding.AbstractEncodingFilter.doFilter(AbstractEncodingFilter.java:38)	at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at com.atlassian.core.filters.HeaderSanitisingFilter.doFilter(HeaderSanitisingFilter.java:44)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at com.atlassian.confluence.servlet.FourOhFourErrorLoggingFilter.doFilter(FourOhFourErrorLoggingFilter.java:65)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)	at java.lang.Thread.run(Unknown Source)Caused by: java.lang.NullPointerException	at com.atlassian.spring.container.ContainerManager.getComponent(ContainerManager.java:33)	at com.atlassian.confluence.util.LazyComponentReference$Accessor.get(LazyComponentReference.java:44)	at com.atlassian.util.concurrent.Lazy$Strong.create(Lazy.java:88)	at com.atlassian.util.concurrent.LazyReference$Sync.run(LazyReference.java:326)	at com.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:146)	... 24 more        
```

### Referer URL {#toc-hId--946604262}

Unknown


Answers:
author: Amalia
body: Are you using SQLite for Confluence? For your information, Confluence is [only compatible](https://confluence.atlassian.com/display/DOC/Supported+Platforms) with MySQL, Oracle, SQL Server, PostgreSQL, and HSQLDB (this one for evaluation purposes).

If you are using SQLite for other applications, please check the atlassian-confluence.log in the Home Directory or catalina.out log in the Installation Directory for any clues regarding this.

comments: author: Sebastian Buckpesch
body: Hi Amalia,

thanks for your quick answer. Actually I still use mysql for confluence. I did not change anything in the confluence settings, but out of a sudden this error occured. I attached an exceprt of both log files (atlassian-confluence.log) and (catalina.out.txt). I can't find the specific problem in there... :-(

Do you have any idea what could be the problem here?

Thanks a lot, Sebastian.


author: Amalia
body: I think it would be great if you could attach a full atlassian-confluence.log here :) the Null Pointer Exception does not explain anything. Usually the root cause of the error comes before that :)


author: Sebastian Buckpesch
body: couldn't attach the full file anyhow... I hosted it on my server: <http://www.app-arena.com/de/files/temp/2013_01_atlassian_answers/atlassian-confluence.log.txt>


author: Amalia
body: Sebastian, I have checked the log but it includes all the NullPointerExceptions (I suspect you tried to refresh the browser every time). I would recommend you to stop Confluence, [clear plugin cache](https://confluence.atlassian.com/display/CONFKB/How+to+Clear+Confluence+Plugins+Cache) and then start Confluence. See if this fixes the issue. Otherwise, see the log and search for "build #" (which is the last restart that you did) and see if there is anythign useful after the restart. attach the recent log here or go over to <https://support.atlassian.com/> to receive our support :)


author: Sebastian Buckpesch
body: Thank you. This solved my problem. :-)