backup error

9th Aug 2014 3.34.09 PM	 Error	The activity failed: A filesystem operation failed.
19th Aug 2014 3.34.09 PM	 Error	A filesystem operation failed while processing 'Filesystem/public_html/oldblog/wp-content/backups/WPOnlineBackup_19-08-2014_19-55-26_99_c624631312152ee3b1b06cedf5e37bb8f6a75cd4.zip' (Size unknown) for backup.
If the following error message is not clear as to the problem and the issue persists, please contact support providing the complete event log for the activity. Diagnostic information follows:

Failed at: 1045(/home1/chocold5/public_html/wp-content/plugins/wponlinebackup/include/files.php)
An error happened at: compressor_deflate.php(432)
filesize(): stat failed for /var/tmp/obfwmnMAW3
19th Aug 2014 3.32.20 PM	 Error	The activity failed: An error happened at: disk.php(187)
fopen(/home1/chocold5/public_html/wp-content/plugins/wponlinebackup/tmp/backup.zip.7662cf53facf6c4df8dee7f3a3e7fcacefec486b.2.php): failed to open stream: No such file or directory
19th Aug 2014 3.32.19 PM	 Error	The activity failed: A filesystem operation failed.
19th Aug 2014 3.32.19 PM	 Error	A filesystem operation failed while processing 'Filesystem/public_html/oldblog/wp-content/backups/WPOnlineBackup_19-08-2014_19-55-26_99_c624631312152ee3b1b06cedf5e37bb8f6a75cd4.zip' (Size unknown) for backup.
If the following error message is not clear as to the problem and the issue persists, please contact support providing the complete event log for the activity. Diagnostic information follows:

Failed at: 1045(/home1/chocold5/public_html/wp-content/plugins/wponlinebackup/include/files.php)
An error happened at: compressor_deflate.php(432)
filesize(): stat failed for /var/tmp/obfwWEshRd
19th Aug 2014 3.22.15 PM	 Information	Folder /public_html/wp-content/plugins/wponlinebackup/tmp was excluded: Temporary backup directory
19th Aug 2014 3.22.15 PM	 Information	Folder /public_html/wp-content/backups was excluded: Local backups directory
19th Aug 2014 3.22.13 PM	 Information	Database backup completed.
19th Aug 2014 3.22.13 PM	 Information	Initialisation completed.
19th Aug 2014 3.22.13 PM	 Information	Backup starting...