Steam wrapper after gui gives ERR_FILE_NOT_FOUND

[deeplyarnab]

Trying to run this game via the steam compatibility tools wrapper and after gui to select options, etc. it gives the following error on index.html

Your file couldn’t be accessed
It may have been moved, edited or deleted.
ERR_FILE_NOT_FOUND

To Reproduce
Steps to reproduce the behavior:

1. Go to steam game properties -> compatibility and set this tool
2. Click on play
3. Don't change options in GUI and click OK
4. See error

Expected behavior
Run the game the way it does with the right click menu.

Desktop (please complete the following information):

• OS: CachyOS (Latest) Linux 7.1.5-1-cachyos

Additional context
During update/installation, got the following:

nstalling rpgmaker-linux v1.1.9
Missing /home/arnab/desktopapps/nwjs creating one
/usr/bin/xdg-mime: line 885: qtpaths: command not found
Installation Done

qtpaths is from qt5-tools package from what I found and doesn't cause issues if it's installed. qt6-tools is installed by default in KDE Plasma 6.7.3

And none of the rpgmaker-linux commands work