Fatal error: Uncaught wfWAFStorageFileException: Unable to verify temporary file contents for atomic writing. in /www/wub/school-economics/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php:46 Stack trace: #0 /www/wub/school-economics/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php(567): wfWAFStorageFile::atomicFilePutContents('/www/wub/school...', '<?php exit('Acc...') #1 [internal function]: wfWAFStorageFile->saveConfig() #2 {main} thrown in /www/wub/school-economics/wp-content/plugins/wordfence/vendor/wordfence/wf-waf/src/lib/storage/file.php on line 46