EXS24 Sampler option missing

Trying to pull up the EXS24 sampler to sample an audio clip, but it is just not there?

When I go to the plug-in area and click on the drop down menu, I see every sampler except EXS24. Youtube videos show that it is supposed to be between the "EVOC 20" and "External Instruments" options, but there is no EXS24 on my list. I have a screenshot of what my drop-down menu looks like below.

Any help is appreciated!!! The only things I have been able to find online are how to navigate towards and open EXS24, but the option just doesn't seem to exist on my software.

Thanks in advance!