The plugin page says:
Not compatible with the version of your running IDE (IntelliJ IDEA 2023.3)
From the 'about' dialog:
IntelliJ IDEA 2023.3 (Ultimate Edition)
Build #IU-233.11799.241, built on December 1, 2023
Licensed to Simon Allaway
Subscription is active until December 13, 2023.
Runtime version: 17.0.9+7-b1087.7 aarch64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 14.1.2
GC: G1 Young Generation, G1 Old Generation
Memory: 2048M
Cores: 10
Metal Rendering is ON
Non-Bundled Plugins:
CheckStyle-IDEA (5.85.0)
com.intellij.aqua (233.11799.259)
org.intellij.scala (2023.3.17)
org.jetbrains.plugins.docker.gateway (233.11799.244)
Kotlin: 233.11799.241-IJ
The plugin page says:
Not compatible with the version of your running IDE (IntelliJ IDEA 2023.3)
From the 'about' dialog: