Lime Survey was newly installed a week or so ago and seemed to be working just fine but today I went to the link and it said internal server error and would not render. After resetting the urlFormat from path to get and adding debugging, I have this CException:

throw new CException(Yii::t('yii','Unable to lock file "{file}" for reading.',


Can anyone help me. I'm not that experienced but I can find my way around the code.