Doc Id: 2485429.1 EBSCloudBackup.pl errors

we are at the step
7.3.1 Execute the Oracle E-Business Suite Cloud Backup Module to Back Up Your Environment
of
Doc Id: 2485429.1
we are encountering the below

3pt/perl/bin/perl EBSCloudBackup.pl
Number found where operator expected at /home/user_id/cloud/RemoteClone/lib/Helper.pm line 521, near "case 1"
(Do you need to predeclare case?)
Number found where operator expected at /home/user_id/cloud/RemoteClone/lib/Helper.pm line 522, near "case 2"
(Do you need to predeclare case?)
Number found where operator expected at /home/user_id/cloud/RemoteClone/lib/Helper.pm line 523, near "case 3"
(Do you need to predeclare case?)