Error when upgrading

[pal]

 Error: cannot to pack /hermes/bosweb25a/b409/ipg.********/admin/system/backup/abantecart_120.tar.gz

i receive error when i upgrading to 1.2.1

any help

[Basara]

Hello.

This error about Backup fail see
http://forum.abantecart.com/index.php/topic,3129.msg13254.html#msg13254
http://forum.abantecart.com/index.php/topic,212.msg608.html#msg608

Backup your files and database in hosting Cpanel before upgrade