Sometimes, VST plugins are not found by the host/DAW because the right location is not configured in the DAW's preferences.
Read this article to get some hints for general Plug-in organization.
If you are not using a custom location, by default the VST files are installed to:
Please point your DAW to look into this folder in case your plugins don't show up in your DAW.
If you used the UJAM app for installation, please check which folder you've selected in the settings: