How can I import my models

I've been trying to use this software in Steam Play, Proton, Wine, what have you. My OS is Manjaro Linux and I use Proton-5.11-GE-3-MF. When I first install the program, it runs fine, but the next time I open it, it doesn't appear to open, even though Steam says it's "Running." If there is any way I can debug this and see if there are any errors or anything, please let me know, thanks!...

could someone help me convert an MMD avatar? there is only one video on Youtube, but it wanders too much and I do not understand anything.

如題TT

I've been trying to find any info on the eye tracking not working well and looking for a fix but couldn't find anything. Anyone know a fix or anything? Eyes just keep looking down unless I look to the sides. Please let me know thanks.