I asked this question on IRC, but nobody replied:
After adding some ordinary page and publishing it, admin stopped working. There is absolutely no response on xxx.info/admin. ?isDev=true displays no error message. By writing echo 'hello'; I tracked down where the problem lies and I inserted debug_backtrace there. It's
/srv/www/hosts/www.beta.vysehratky.cz/www/sapphire/core/ViewableData.php:763, Objekt: SSViewer, Funkce: process
/srv/www/hosts/www.beta.vysehratky.cz/www/cms/code/LeftAndMain.php:372, Objekt: CMSMain, Funkce: renderWith
:, Objekt: CMSMain, Funkce: RightBottom
/srv/www/hosts/www.beta.vysehratky.cz/www/sapphire/core/ViewableData.php:542, Objekt: , Funkce: call_user_func_array
/srv/www/hosts/www.beta.vysehratky.cz/www/sapphire/core/ViewableData.php:583, Objekt: CMSMain, Funkce: cachedCall
/tmp/silverstripe-cache-srv-www-hosts-www.beta.vysehratky.cz-www/.cache.srv.www.hosts.www.beta.vysehratky.cz.www.cms.templates.LeftAndMain.ss:107, Objekt: CMSMain, Funkce: hasValue
/srv/www/hosts/www.beta.vysehratky.cz/www/sapphire/core/SSViewer.php:219, Objekt: , Funkce: include
/srv/www/hosts/www.beta.vysehratky.cz/www/sapphire/core/control/Controller.php:303, Objekt: SSViewer, Funkce: process
/srv/www/hosts/www.beta.vysehratky.cz/www/sapphire/core/control/Controller.php:272, Objekt: CMSMain, Funkce: defaultAction
/srv/www/hosts/www.beta.vysehratky.cz/www/sapphire/core/control/Director.php:104, Objekt: CMSMain, Funkce: run
/srv/www/hosts/www.beta.vysehratky.cz/www/sapphire/main.php:158, Objekt: , Funkce: direct
where script silently dies on line "include($cacheFile);". This drives me mad, I have no idea on how to fix it.