Plugin installed but not visible in dashboard

I have been using the Photo Gallery by Supsystic but recently it is no longer displayed in the plugin section and the photo galleries have disappeared from the dashboard. It is installed on the server. I haven’t changed any settings recently nor added new plugins. Help, please & thank you, K

Hello, your issue looks like general WordPress issue.

I kindly suggest you to use WordPress.org forums to find a solution.

Kind Regards, Roman.