Reset your password through the web console of IMSA/IMSVA.
To reset the web admin console password, access the IMSA/IMSVA dabatabase via psql using the following commands:
# /opt/trend/imss/PostgreSQL/bin/psql imss sa
imss=# update tb_administrator set md5_digest = md5('imsa7.0') where admin_name = 'admin';
UPDATE 1
imss=# \q
Note: IMSA 7.0 is the default password, you can change it to your preferred one.