[SOLVED] New user, need help with installing a program

[Sandermander]

Hi, I'm trying to install a program (Foundry vtt, in case that's relevant) and following the guide on the website it tells me to simply unzip a folder then run a command to execute a script from the downloaded file. When I run said command however I get the following error message:

The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /home/sander/FoundryVTT/chrome-sandbox is owned by root and has mode 4755.
Trace/breakpoint trap (core dumped)

Now, I'm able to see that it wants me to make sure that chrome-sandbox is owned by root and to check it's mode. Problem is, I have no clue what that means. I am very inexperienced with Linux, and have been unable to find an answer that I actually understand online. Could anyone explain to me like I'm a five-year old please?

Thanks in advance!

[jlittle]

This is a common AppImage problem, for me with Ubuntu since 25.04. I don't understand the security implications or how to fix it properly, if it can be, but I work around it by adding --no-sandbox to the command line. For example, to run Balena Etcher I run

balenaEtcher-1.19.22-x64.AppImage --no-sandbox

[Sandermander]

Oh, you absolute hero! It worked! Thanks