Sorry for the delayed answer...
Your talking about .dll so I assume that you're on a Windows machine, then which version ? Win 7, Win 10..etc
and more importantly are you on a 64bit or 32bit version of Windows and Cubase ( I assume x64 because running latest Cubase version ).
If using a Win x64 system you should use the appropriate Kick 2 x64.dll plugin file in your appropriate VST folder that should be under C:\Program Files\Steinberg\VSTPlugins... or any custom folder location under C:\Program Files...
I'm using the following custom path ( just to give you an example )
C:\Program Files\VstPlugins\Sonic Academy\Kick 2 x64.dll
You don't want to use the Kick 2.dll which is for Win 32Bit system in a x64 environment.
That's a first basic troubleshooting, let me know if that helped