Filr Desktop Client on Linux Mint 21.3

Hi,

I'm trying to install the Filr Desktop Client on my Linux Laptop but I'm getting the same error over and over again.

pako@Thinkpad-X390-Yoga:~/Downloads/FilrLinuxClient$ sudo bash filrClient.sh --install
Beginning the install of Micro Focus Filr Desktop Client
filrClient.sh: line 748: [: =: unary operator expected
filrClient.sh: line 748: [: =: unary operator expected
License not accepted, aborting the installation

My system specifications are the following:

System:
Kernel: 5.15.0-105-generic x86_64 bits: 64 compiler: gcc v: 11.4.0
Desktop: Cinnamon 6.0.4 tk: GTK 3.24.33 wm: muffin dm: LightDM
Distro: Linux Mint 21.3 Virginia base: Ubuntu 22.04 jammy

Has somebody any idea why I'm getting this error?