Main Menu Show Inside App Window (Not In System Menubar)

I upgraded to phpStorm 2022.2.1 ( Build #PS-222.3739.61, built on August 18, 2022 ) yesterday and ever since, the main toolbar now appears inside the app. I can't seem to find a way to restore it. I'm using OSX High Sierra 10.13.6 . How do I fix this? 

Take a look - 


Unfortunately that macOS version is no longer supported. A version macOS 10.14 or later is required.