I have Installed Booktype Version 2.2 in Ubuntu 18.04.
I all worked fine. All of a sudden the Edit page became blank and I was not able to edit any of the books or chapters in the book.
This is the second time I am facing this issue. Earlier I reinstalled the system and it worked fine. Now I have installed in the server and started updating data and all of a sudden I got those error again.
I am not sure if this is any package issue. Please help on how to fix this issue.