The temporary data file could not be created in the temporary processing directory (/var/www/html/modernize/wp-content/plugins/wponlinebackup/tmp).
If the below error is related to permissions, you may need to login to your website via FTP and change the permissions on the temporary processing directory. The permissions required, in numeric form, are normally 0770, but on some servers you may need to use 0777. Your host will be able to assist if you have any doubts.
Error: No error message was logged.