error message at the console

[david-martin-orange]

after exiting a test run of the installer where i updated the cento and pfring package, i saw the error below on the console
but the command seems to have worked

tested on an ubuntu 24.04.3 LTS with the latest updates

root@ubuntu:# ntop-installer
/usr/bin/ntop-installer: line 188: test: ==: unary operator expected
/usr/bin/ntop-installer: line 196: !test: command not found
/usr/bin/ntop-installer: line 227: test: ==: unary operator expected
/usr/bin/ntop-installer: line 235: test: ==: unary operator expected
/usr/bin/ntop-installer: line 243: test: ==: unary operator expected
/usr/bin/ntop-installer: line 252: test: ==: unary operator expected
/usr/bin/ntop-installer: line 203: test: ==: unary operator expected
/usr/bin/ntop-installer: line 211: test: ==: unary operator expected
/usr/bin/ntop-installer: line 219: test: ==: unary operator expected
root@ubuntu:#