Hello Shreyashtijare
It looks like Java's Nashorn Javascript engine is deprecated and has been removed from JDK 15 (and later). It has been replaced by GraalVM:
https://www.graalvm.org/22.1/reference- ... tionGuide/Wandora initializes some predefined scripts written in conf/options.xml with Nashorn Javascript engine. Just look in the options.xml file and search Nashorn. I have not tried to fix this yet but expect the problem disappear if you replace the 'Nashorn' with GraalVM's script engine name 'graal.js'. Also, version number should be changed. I have not investigated if the new graal.js is compatible with Nashorn and can run predefined scripts without errors.
Kind Regards,
Aki