Averify 1.7.7.0 - Error: Could not find or load main class org.apache.tools.ant.Main

Hi all, I'm trying to run the Averify 1.7.7.0 against an Agile v9.3.5 but I'm facing the error below:

[oracle@agile bin]$ ./averify.sh

NOTE: Recommend that application server(s) be stopped and the database not be modified while Averify is running.

Please input the database user:

agile

Please input the password:

oracle

INSTALL_HOME = ..

LIB_DIR = ../lib

JAVA_HOME = /usr/java/jdk1.8.0_91

CONFIG_DIR = ../config

CLASSPATH = /usr/java/jdk1.8.0_91/lib/tools.jar:../lib/ant.jar:../lib/tools.jar:../lib/ant-launcher.jar:../lib/ojdbc7.jar:../lib/fsclient.jar:../config:../lib/agileclasses.jar:../lib/ant-javamail.jar:../lib/mail.jar:../lib/activation.jar:/u01/app/oracle/product/12.1/db_1/jlib:/u01/app/oracle/product/12.1/db_1/rdbms/jlib: