I am running in into this weird error on our site http://amanvida.eu. The problem is hard to recreate, and I haven't been able to pin point a cause. It does happen more often when you are logged in and left the page open for a long time.
At some point the website will not load, it just keeps requesting and after a while an Maximum execution time error pops up which refers to a random line somewhere in Magento.
Fatal error: Maximum execution time of 99 seconds exceeded in /home/users/amanvftp/amanvida.eu/app/code/core/Zend/Db/Select.php on line 1018
Fatal error: Maximum execution time of 99 seconds exceeded in /home/users/amanvftp/amanvida.eu/lib/Varien/Object.php on line 109
Fatal error: Call to a member function quote() on a non-object in /home/users/amanvftp/amanvida.eu/lib/Zend/Db/Adapter/Pdo/Abstract.php on line 296
Fatal error: Maximum execution time of 99 seconds exceeded in /home/users/amanvftp/amanvida.eu/lib/Varien/Object.php on line 0
The error is different with every refresh.
The only solution to getting this error solved is to clear the cookies in your browser cache. Problem is that regular users won't know this and will have to wait a long time before they can reach the site again.
Has anyone every encountered this error before? I have no idea where to start looking to solve this.
Nothing shows up in the exception.log or system.log
PS This error does not show up in the admin section.