sha1sum: WARNING: 1 computed checksum did NOT match

brand new install of ubuntu 14.05 lts and I basically am getting the same thing…

Updating system packages…
Installing system packages…
Initializing system random number generator…
Firewall is active and enabled on system startup
Installing nsd (DNS server)…
Installing Postfix (SMTP server)…
Installing Dovecot (IMAP server)…
Installing OpenDKIM/OpenDMARC…
Installing SpamAssassin…
Removing apache…
Installing Nginx (web server)…
Installing Roundcube (webmail)…
Installing Nextcloud (contacts/calendar)…
Nextcloud is already latest version
Installing Z-Push (Exchange/ActiveSync server)…
sha1sum: WARNING: 1 computed checksum did NOT match

tried editing the line mentioned above but this still doesn’t work…
vi /mailinabox/setup/zpush.sh

TARGETHASH=66b1613faef61590836682ff1a43d559827fe08

I think that the mailinabox repository needs to be updated to reflect this new hash?

regards