Random plugins are getting disappeared from the dashboard. When the plugins are checked under Plugins > Installed Plugins, there aren't listed in the dashboard side.
On Checking via FTP, the folder do exist. Bot the sites are hosted with Godaddy, and they aren't able to point out what's causing this. The plugins at the moment which is not showing up are:
All-in-One Event Calendar by Time.ly, and Caledra Forms
Had the issue before too, where Membership 2 Pro, and LayerSlider was causing the same behaviour. Re-installing the plugin via FTP helps, but would like to know the cause of the issue.