Metronic 8.1.8 Build my .jar file does not find _keenthemes path

Demo Metronic 8.1.8 is working fine inside STS IDE. Then I generate my .jar file.
I execute jar file on my computer and receive an error:
Caused by: java.io.FileNotFoundException: _keenthemes\config\themesettings.json (System can't find specified path).
It is no capable to find _keenthemes and all files inside it because _keenthemes is not inside .jar file.
I use Java 17, Springboot 3.1.1, Metronic 8.1.8, maven 3.9.3, windows 11...
I need to put _keenthemes folder inside my proyect in order to access all files.
But I try on /static and I can't make a reference to access their files.
I need help.
Thank you in advance.