TYPO3 Core

Configuration: TYPO3 6.0.0, realurl 1.12.3, realurlautoconf 2.0.0

Main objective: to redirect erroneous links to static error.html (with HTTP 404 Not found)

[FE][pageNotFound_handling] = /errors/404.html
[FE][pageNotFound_handling_statheader] = HTTP/1.0 404 Not Found
[HTTP][ssl_verify_host] = 1
[HTTP][ssl_local_cert] = /etc/ssl/cert/main.site.crt
[BE][lockSSL] = 0

case 1:
request: http://www.example.com/index.php?id=1
response: HTTP 200, http://www.example.com/index.php?id=1 - Ok

case 2:
request: http://www.example.com/qwerty/
response: HTTP 404, http://www.example.com/errors/404.html - Ok

case 3:
request: http://www.example.com/index.php?id=124
response: HTTP 500, http://www.example.com/index.php?id=124 (Could not fetch page data for uid 124.)
Log: Core: Exception handler (WEB): Uncaught TYPO3 Exception: #1343589451: Could not fetch page data for uid 124. | RuntimeException thrown in file /usr/local/src/typo3_src-6.0.0/typo3/sysext/core/Classes/Utility/RootlineUtility.php in line 211. Requested URL: https://www.example.com/index.php?id=124

but the page with id 124 does not exist and must be forwarded to HTTP 404

... and Workspaces Management extension is not installed, Localization is not used.

When testing latest TYPO3 6 git version i have similiar error but only in the backend :

Core: Exception handler (WEB): Uncaught TYPO3 Exception: #1343589451: Could not fetch page data for uid 0. | RuntimeException thrown in file [MY_PATH]/typo3/sysext/core/Classes/Utility/RootlineUtility.php in line 211. Requested URL: http://domain.com/typo3/backend.php

I confirm this error as Anton describes it.

Priority must be elevated to "Must have".

Problem: if a website is changed (I took one over) the page ids change. In Google the old links still exist for a while. Visitors get to the page "Oops, an error occurred!"

You understand, this is a major issue.

The only option to bypass this issue is putting the most important links as they exist in the Google index, in the htaccess with a 301.

The error appears in frontend when I'm logged in in backend on the same browser.

Typo3 6.0.2 upgraded from 4.2 -> 4.5 -> 4.7
PHP 5.4.12

Activating / deactivating SimulateStatic does not make any difference.

As for the original problem, there is a fix out now here:
http://forge.typo3.org/issues/44454

@Marcin Sągol: You problem seems to have another cause. I would recommend to search this bugtracker and google for "Could not fetch page data for uid 0." as there are already some posts out there. If you are still not able to get it working please open a new issue.

@Moderator: I would recommend to close this issue while it duplicates the mentioned issue which is already under review.