TYPO3 Core

Tonight we started receiving the following error message in our error_log:

PHP Fatal error: Cannot redeclare class t3lib_timetrack in /var/www/html/typo3_src-4.1.1/t3lib/class.t3lib_timetrack.php on line 88

I have not attempted to investigate further (we are at a peak time of traffic this evening...)

Additionally, we are seeing:
[Mon Jul 16 01:39:38 2007] [error] [client 71.14.22.199] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /var/www/html/cms/typo3conf/ext/cal/controller/class.tx_cal_modelcontroller.php on line 321
[Mon Jul 16 01:39:53 2007] [error] [client 205.188.116.198] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /var/www/html/cms/typo3conf/ext/cal/controller/class.tx_cal_controller.php on line 30
[Mon Jul 16 01:40:14 2007] [error] [client 74.226.12.48] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /var/www/html/typo3_src-4.1.1/typo3/sysext/cms/tslib/class.tslib_fe.php on line 3564, referer: http://www.google.com/hws/dell-usuk/afe?channel=us&hl=en&ibd=&q=wallacestate&Submit=Search
[Mon Jul 16 01:40:29 2007] [error] [client 152.163.100.202] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /var/www/html/cms/typo3conf/ext/cal/static/timezones.php on line 325

(issue imported from #M5971)