nested exception is java.lang.ClassNotFoundException: com.config.MyMetaObjectHandler

This error indicates that the class `com.config.MyMetaObjectHandler` cannot be found by the Java Virtual Machine (JVM) at runtime.

There are a few possible reasons why this error might occur:

1. The class `com.config.MyMetaObjectHandler` is not present in the classpath. This could happen if the class is not included in the application's JAR or WAR file, or if the classpath is not configured correctly.

2. The class `com.config.MyMetaObjectHandler` is present in the classpath, but it is not accessible to the JVM. This could happen if the class is in a different package or module than the one that is being executed, or if the class has restricted access modifiers (e.g. private or protected).

3. The class `com.config.MyMetaObjectHandler` has a dependency on another class or library that is not present in the classpath. This could happen if the application is missing a required dependency or if the dependency is not configured correctly.

To resolve this issue, you should first verify that the class `com.config.MyMetaObjectHandler` is present in the classpath and accessible to the JVM. You can also try adding any missing dependencies to the classpath and checking that they are configured correctly. If you continue to experience this issue, you may need to seek further assistance from a developer or support team with expertise in Java development.