./luajit: frontend/cache.lua:79: attempt to index a nil value
stack traceback:
frontend/cache.lua:79: in function 'insert'
frontend/document/document.lua:269: in function 'renderPage'
frontend/document/document.lua:280: in function 'hintPage'
frontend/document/koptinterface.lua:355: in function 'hintPage'
frontend/apps/reader/modules/readerhinting.lua:11: in function 'handleEvent'
frontend/ui/widget/container/widgetcontainer.lua:68: in function 'propagateEvent'
frontend/ui/widget/container/widgetcontainer.lua:80: in function 'handleEvent'
frontend/apps/reader/modules/readerview.lua:250: in function 'action'
frontend/ui/uimanager.lua:277: in function 'checkTasks'
frontend/ui/uimanager.lua:398: in function 'run'
./reader.lua:176: in main chunk
[C]: at 0x0000bde5