I would appreciate it if someone could help me with running TempEst software.

Running "./tempest.jar" in the lib directory gives me an error (end of this message). "Double clicking" on jar file directs me to the folder-browser and when I choose my Nexus tree, it does nothing. Any advice is appreciated. I use Ubuntu 20.04 and OpenJDK version 1.8.

hassan@shafiey:~/Mysoftwares/TempEst_v1.5.3/lib$ ./tempest.jar ./tempest.jar: line 1: $'PK\003\004': command not found ./tempest.jar: line 2: $'\b': command not found ./tempest.jar: line 2: $'b\315N': command not found ./tempest.jar: command substitution: line 7: syntax error near unexpected token (' ./tempest.jar: command substitution: line 7:�Ǹ� ���1i���4�,�Cz�U��g(m\1G~S�v�H] �]��hx�� �c�x~�VM��1oa��' ./tempest.jar: line 7{b�N +%��META-INF/MANIFEST.MFM�1 �0��@�CF�Ƞ���X�U�퉁6=.��otrz�� No such file or directory ./tempest.jar: line 8: a{B���G����L��fh� �t�k&��� VE)y�dĐ뫜5n������Rqq S�HRO�R7���j�X�!5���vtO��RJ�dȰВ��i٩�~�@5O����NE�2�KF#�H��w�l@P3�#QF���!C���M#%o��YFvp���xѠ���dcB��W /�I� 4B�#U�5�u�\9��!+���PK Y��N^෷Mdr/app/beauti/BeautiApp$2.class}QMK�@}�~��h�lkՓxH�DzmmAh� ��i��55ل�V�_驠��G��R�u��ٙ��}3������=Yts(�Pֱ����F�=��RV�: No such file or directory ./tempest.jar: line 9: syntax error near unexpected token(' �i���pes���՟���K��P<ح(�=�J/��4|ڦ�G]�g���������������HǶ�:vL�FP �F�=dt*=�=7 U�v�u)������t4 �3Ι��4�YLP��Gj�����ᄹ����j+�P� �� ��m�'���,'�n��+�#dt5-MU�� �**K���@^�,�u� ���ڀ�����!�2�h�Pw��ȣ�����#�oPK'