Warning: touch() [function.touch]: Unable to create file /home/math/public_html/typo3temp/locks/9e8671446dbde9f6c9615acb88bed558 because Permission denied in /opt/typo3/4.2.1/t3lib/class.t3lib_lock.php on line 170

Warning: fopen(/home/math/public_html/typo3temp/llxml/xml_ca793160cd.de.iso-8859-1.cache) [function.fopen]: failed to open stream: Permission denied in /opt/typo3/4.2.1/t3lib/class.t3lib_div.php on line 2661
ERROR: File not written to disk! Write permission error in filesystem?