Same Crash here. Currently trying to reinstall it manually (Debian 11.4 / Lutris 0.5.10) with lutris-7.2-2-x86-64.
lutris-fshack-7.2-x86-64 crashes. lutris-GE-Proton7-1-x86-64 and lutris-GE-Proton7-16-x86-64 crashing too.
Update:
It runs with lutris-7.2-2-x86-64. No crashes till now in the trading post window...
Edits:
Corrected the Lutris version number, fixed typos