Error

./applications/images.lua:205: attempt to index local 'original_image' (a nil value)

Traceback

stack traceback:
	./applications/images.lua:205: in function 'handler'
	/home/itch/.luarocks/share/lua/5.1/lapis/application.lua:131: in function 'resolve'
	/home/itch/.luarocks/share/lua/5.1/lapis/application.lua:168: in function </home/itch/.luarocks/share/lua/5.1/lapis/application.lua:166>
	[C]: in function 'xpcall'
	/home/itch/.luarocks/share/lua/5.1/lapis/application.lua:174: in function 'dispatch'
	/home/itch/.luarocks/share/lua/5.1/lapis/nginx.lua:231: in function 'serve'
	content_by_lua(nginx.conf.compiled:521):1: in main chunk