Apparently the creator left the project, has several security flaws dangerous files get into the chat folders without any explanation, and that only happens to the chat, also when putting php 7.2 some failures begin such as: they do not update the customers properly, the chats do not open well on the operator side, in short it is a disaster, so I change this rating since I have finally been disappointed, I suggest that others look carefully at the date of the last update of the plugin before buying and checking with your developer before to see if he responds.