After creating an account on Beta (https://en.wikipedia.beta.wmflabs.org):
```
A database query error has occurred. This may indicate a bug in the software.[WABBNApEE4AAAEoHzP4AAAAG] 2016-10-14 02:21:42: Fatal exception of type "DBQueryError"
```
From logstash-beta:
```
[
{
"file": "/srv/mediawiki/php-master/includes/libs/rdbms/database/Database.php",
"line": 895,
"function": "reportQueryError",
"class": "Database",
"type": "->",
"args": [
"string",
"integer",
"string",
"string",
"boolean"
]
},
{
"file": "/srv/mediawiki/php-master/includes/libs/rdbms/database/Database.php",
"line": 1481,
"function": "query",
"class": "Database",
"type": "->",
"args": [
"string",
"string"
]
},
{
"file": "/srv/mediawiki/php-master/extensions/CentralAuth/includes/CentralAuthUser.php",
"line": 1803,
"function": "insert",
"class": "Database",
"type": "->",
"args": [
"string",
"array",
"string",
"string"
]
},
{
"file": "/srv/mediawiki/php-master/extensions/CentralAuth/includes/CentralAuthPrimaryAuthenticationProvider.php",
"line": 453,
"function": "attach",
"class": "CentralAuthUser",
"type": "->",
"args": [
"string",
"string"
]
},
{
"file": "/srv/mediawiki/php-master/includes/auth/AuthManager.php",
"line": 1423,
"function": "finishAccountCreation",
"class": "CentralAuthPrimaryAuthenticationProvider",
"type": "->",
"args": [
"User",
"User",
"MediaWiki\\Auth\\AuthenticationResponse"
]
},
{
"file": "/srv/mediawiki/php-master/includes/auth/AuthManager.php",
"line": 1129,
"function": "continueAccountCreation",
"class": "MediaWiki\\Auth\\AuthManager",
"type": "->",
"args": [
"array"
]
},
{
"file": "/srv/mediawiki/php-master/includes/specialpage/AuthManagerSpecialPage.php",
"line": 360,
"function": "beginAccountCreation",
"class": "MediaWiki\\Auth\\AuthManager",
"type": "->",
"args": [
"User",
"array",
"string"
]
},
{
"file": "/srv/mediawiki/php-master/includes/specialpage/AuthManagerSpecialPage.php",
"line": 484,
"function": "performAuthenticationStep",
"class": "AuthManagerSpecialPage",
"type": "->",
"args": [
"string",
"array"
]
},
{
"file": "/srv/mediawiki/php-master/includes/htmlform/HTMLForm.php",
"line": 656,
"function": "handleFormSubmit",
"class": "AuthManagerSpecialPage",
"type": "->",
"args": [
"array",
"VFormHTMLForm"
]
},
{
"file": "/srv/mediawiki/php-master/includes/specialpage/AuthManagerSpecialPage.php",
"line": 418,
"function": "trySubmit",
"class": "HTMLForm",
"type": "->",
"args": []
},
{
"file": "/srv/mediawiki/php-master/includes/specialpage/LoginSignupSpecialPage.php",
"line": 297,
"function": "trySubmit",
"class": "AuthManagerSpecialPage",
"type": "->",
"args": []
},
{
"file": "/srv/mediawiki/php-master/includes/specialpage/SpecialPage.php",
"line": 522,
"function": "execute",
"class": "LoginSignupSpecialPage",
"type": "->",
"args": [
"NULL"
]
},
{
"file": "/srv/mediawiki/php-master/includes/specialpage/SpecialPageFactory.php",
"line": 583,
"function": "run",
"class": "SpecialPage",
"type": "->",
"args": [
"NULL"
]
},
{
"file": "/srv/mediawiki/php-master/includes/MediaWiki.php",
"line": 283,
"function": "executePath",
"class": "SpecialPageFactory",
"type": "::",
"args": [
"Title",
"RequestContext"
]
},
{
"file": "/srv/mediawiki/php-master/includes/MediaWiki.php",
"line": 861,
"function": "performRequest",
"class": "MediaWiki",
"type": "->",
"args": []
},
{
"file": "/srv/mediawiki/php-master/includes/MediaWiki.php",
"line": 522,
"function": "main",
"class": "MediaWiki",
"type": "->",
"args": []
},
{
"file": "/srv/mediawiki/php-master/index.php",
"line": 43,
"function": "run",
"class": "MediaWiki",
"type": "->",
"args": []
},
{
"file": "/srv/mediawiki/w/index.php",
"line": 3,
"function": "include",
"args": [
"string"
]
}
]
```