Phone Support is free for the first 90 days since purchase. After that if you need additional phone support there are support contracts you can buy. Online Support and this forum is free. Take a look at http://www.readynas.com/support
In the log zip file you downloaded, do things look fine in diagnostics.log?
If you have the time, it would be a good idea to try the following:
1. Backup all data
2. Verify backup is good
3. Do a factory reset e.g. via System > Update > Factory Default or using the Boot Menu (http://www.readynas.com/kb/faq/boot/how_do_i_use_the_boot_menu
4. Wait for resync to complete then restore data from backup
This will give you a clean setup on the latest firmware (since you've already updated to the latest firmware).