joget v4 intallation problem in ubuntu

when iam trying to run ./setup.sh in ubuntu,

iam getting following error.....

can anyone please suggest me how to solve this...

this is the following output iam getting.......

saketh@saketh:~/Desktop/IIT Bombay/RA project/joget-linux-4.0-SNAPSHOT$ ./setup.sh
Buildfile: build.xml

setup-db:
    [input] Please enter MySQL host name: [localhost]
localhost
    [input] Please enter MySQL port: [3306]
3306
    [input] Please enter MySQL database name: [jwdb]
jwdb
    [input] Please enter MySQL username: [root]
root
    [input] Please enter MySQL password: []
*****

create-db:
     [echo] Creating database, please wait...
     [exec] ERROR 1050 (42S01) at line 24: Table 'SHKActivities' already exists
     [exec] Result: 1

create-profile:
    [input] Please enter profile name to create: [default]