I Installed it on a remote server and now noticed two bugs:
1- A user has already login into the website
2- at the same time the admin installs the plugin
3- the user ( of course on another browser / session) refreshes his/her screen and now notices a notification with number 1(in yellow)
4- the user clicks on the number (1) and the list box opens but empty!
1- A question posted by admin get answered
2- now thw admion refreshes the screen to see the notification
3- clicking on the notification lists the answer but the image icon is missing :
After the sequence above,
1 - the admin comments on an answer given by user ar,
2- then the user ar comments back.
3- now admin refreshes the page to see the notification
4- a number (1) appears as notification but clicking on it does not open the list box ( you see testing the local copy also had the same result, I think testing your work locally would help a lot)