Elsternwick New Addition 2

Fatal error: Uncaught wfWAFStorageFileException: Unable to verify temporary file contents for atomic writing. in /home/sksk6636/public_html/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php:47 Stack trace: #0 /home/sksk6636/public_html/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php(648): wfWAFStorageFile::atomicFilePutContents('/home/sksk6636/...', '<?php exit('Acc...') #1 [internal function]: wfWAFStorageFile->saveConfig('livewaf') #2 {main} thrown in /home/sksk6636/public_html/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php on line 47