I was waiting for the reply, here are some details that maybe helpful to understand what it could be.
Below is what happened
1 There was one link saying “Overwrite” that came upon your plugin’s admin panel page
2 I clicked on it assuming it was some necessary maintenance process
3 but what happened after click is that the plugin disappeared without anything leaving behind, not even a notification, warning message or error etc.
4 then I inquired and find out that the plugin is deleted, so I installed the plugin again but now there is no data.
What we desperately need is data so that we do not need to spend lot of time again to apply all those settings and recovering the custom html that we had put there on those tabs.