Urgently need someone to help me fix android gradle issue

So after changing the project name I get this:

java.lang.NoClassDefFoundError: Could not initialize class org.jetbrains.kotlin.com.intellij.pom.java.LanguageLevel
at org.jetbrains.kotlin.com.intellij.core.CoreLanguageLevelProjectExtension.<init>(CoreLanguageLevelProjectExtension.java:26)
at org.jetbrains.kotlin.com.intellij.core.JavaCoreProjectEnvironment.<init>(JavaCoreProjectEnvironment.java:4