This is a crash in WebKit. It says your web history gets too big or something like that. Unfortunately this is a bug of WebKit, we cannot do anything about this.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
This really looks like a bug in WebKit. I think you should send this bug to Apple.
Ooops, wrong thread
Last edit: yuggib 2015-09-11
This is a crash in WebKit. It says your web history gets too big or something like that. Unfortunately this is a bug of WebKit, we cannot do anything about this.