Flooding Apache Error Logs

The plugin is flooding the error logs within minutes 1.8Gigs.

This issue is because of a user error when the user specifies a Log Folder location that does not exists on the server.

The issue is it results in $fd is not a resource on inc/class-job.php lines 1078, 1081, 1085, 1086, 1091 and 1093.

To remedy this you should check $fd to make sure the resource exists then run those lines of code.

Here is an example:

if($fd = fopen( $this->logfile, 'r+' ))
{
    // Run your code Here

    fclose( $fd );
}

https://wordpress.org/plugins/backwpup/