2.
Did you by any chance set JAVA_OPTS or FILEBOT_OPTS environment variables? Your locale settings may effect things as well? Are you using en_US locale?
i didn't change any of that. i mean should i ? and how can i check ?

3.
Have you tried uninstalling and reinstalling FileBot via the ...

That might have something to do with all the Integer values being screwed up internally:
FileBot 4.8.1 (r????)
JVM: ??-bit Java HotSpot(TM) 64-Bit Server VM

so is it with java then?
i mean, recently i updated my java but it wasn't working before so.. im not sure if that is relevant to this ...

According to the log, FileBot seems to work just fine from console.

What happens if you launch the FileBot GUI from the console?
filebot

thanks for answering
here:
Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Malformed UnitValue: '??px'
at net.miginfocom.layout ...

Hello there,
I have this problem from the begging, when i purchased it from Windows store.
this is the info when i run filebot -script fn:sysinfo in CMD
FileBot 4.8.1 (r????)
JNA Native: 5.2.0
MediaInfo: 18.03
7-Zip-JBinding: 9.20
Chromaprint: 1.4.2
Extended Attributes: OK
Unicode Filesystem: OK ...