v1.21_Application Blocked by Java Security

root@ubuntu-bionic:~# apt-get update
...
Fetched 12.1 MB in 19s (624 kB/s)
Reading package lists... Done

root@ubuntu-bionic:~# apt-get install eltex-ems-db
...
Enter your MySQL administrator password: root
Enable remote access to database? (y/N) y
...
Select default language for EMS:
1. Russian
2. English (default)
Enter number: 1
Using locale ru_RU
mysql: [Warning] Using a password on the command line interface can be insecure.
Select access control type:
1 - Role based
2 - Domain based (default)
Enter number: 2
Using domain based access control
Enter root domain name (default is 'root'): root
Please restart EMS manually with "service eltex-ems restart"

root@ubuntu-bionic:~# apt-get install eltex-ems
...
Replace config files:
- /etc/default/tftpd-hpa:
Replace /etc/default/tftpd-hpa? (type 'd' to view diff) [y/N/d] y
File /etc/default/tftpd-hpa is overwritten.
Restarting tftpd-hpa..
- /etc/vsftpd.conf:
Replace /etc/vsftpd.conf? (type 'd' to view diff) [y/N/d] y
File /etc/vsftpd.conf is overwritten.
Restarting vsftpd..
- /etc/snmp/snmpd.conf:
Replace /etc/snmp/snmpd.conf? (type 'd' to view diff) [y/N/d] y
File /etc/snmp/snmpd.conf is overwritten.
Restarting snmpd..
- /etc/rsyslog.conf:
Replace /etc/rsyslog.conf? (type 'd' to view diff) [y/N/d] y
File /etc/rsyslog.conf is overwritten.
- /etc/rsyslog.d/50-default.conf:
Replace /etc/rsyslog.d/50-default.conf? (type 'd' to view diff) [y/N/d] y
File /etc/rsyslog.d/50-default.conf is overwritten.
- /etc/rsyslog.d/mysql.conf:
Replace /etc/rsyslog.d/mysql.conf? (type 'd' to view diff) [y/N/d] y
File /etc/rsyslog.d/mysql.conf is overwritten.
Restarting service rsyslog..