[otichy]

Thanks for a reply. Here is what the crash.log says:

./luajit: ./frontend/ui/device.lua:89: bad argument #1 to 'find' (string expected, got nil)
stack traceback:
	[C]: in function 'find'
	./frontend/ui/device.lua:89: in function 'isKobo'
	./frontend/ui/device.lua:94: in function 'hasNoKeyboard'
	./frontend/ui/device.lua:98: in function 'hasKeyboard'
	./frontend/ui/input.lua:261: in function 'init'
	./frontend/ui/uimanager.lua:11: in main chunk
	[C]: in function 'require'
	./reader.lua:6: in main chunk
	[C]: in function 'dofile'
	./koreader-base:36: in main chunk
	[C]: at 0x0000c250