Warning: include(Zend/Log.php): failed to open stream: Cannot allocate memory in /usr/local/nginx/html/laperla/prod/lib/Varien/Autoload.php on line 93

Warning: include(): Failed opening 'Zend/Log.php' for inclusion (include_path='/usr/local/nginx/html/laperla/prod/app/code/local:/usr/local/nginx/html/laperla/prod/app/code/community:/usr/local/nginx/html/laperla/prod/app/code/core:/usr/local/nginx/html/laperla/prod/lib:.:/usr/share/php:/usr/share/pear') in /usr/local/nginx/html/laperla/prod/lib/Varien/Autoload.php on line 93

Fatal error: Class 'Zend_Log' not found in /usr/local/nginx/html/laperla/prod/app/code/core/Mage/Core/functions.php on line 250