Installation failed on linux mint

[ste_t77]

Good morning,
First of all, congratulations on the software.
About a month ago, I installed QCAD 3.32.4 64 bit on a PC running Linux Mint, and everything is fine.
This morning, I tried to install QCAD 3.32.4 64 bit on two different PCs with linux mint, and in both cases, I got this error (see attached image).

thank you
Stefano

[ste_t77]

I moved the opt folder from root to home and redefined the new path in the icon properties. Now everything works perfectly.
Thank you.