[Koha] problem with installing Koha-3.12.00-beta1

[Quoc Uy]

I'm installing Koha-3.12.00-beta1 tarball. Everything looks right, untill i met web install struction:
Koha>web installer>step 1,2 00 - Ok
Koha>Web installer>step 3- error with this message
"Web installer › Step 3
The following error occurred while importing the database structure:
ERROR 1064 (42000) at line 1004: You have an 
error in your SQL syntax; check the manual that corresponds to your 
MySQL server version for the right syntax to use near '`reservesallowed` smallint(6) NOT NULL default "0",  `branchcode` varchar(10) ' at line 20 
Please contact your system administrator
"

Anyone, who did install it, show me why, please? Do i have problem with my mysql
server?
 

Best regards!
Nguyen Quoc Uy
Admin http://dreamlib.vn & http://vietnamlib.net
Phone: +79525768182