Error For user of custom css gollum –css When gollum updates from version 4 to version5, page layout collapses In particular, _Sidebar is very narrow and rendored in left side. How to fix delete cashe on browser When using Google chrome, Ctrl-f5 Reference Other information of gollum ver5.0 https://github.com/gollum/gollum/wiki/5.0-release-notes