Liquid error: undefined method `keys' for nil:NilClass

Liquid error: undefined method `keys' for nil:NilClass Liquid error: undefined method `keys' for nil:NilClass Liquid error: undefined method `keys' for nil:NilClass Liquid error: undefined method `keys' for nil:NilClass Liquid error: undefined method `keys' for nil:NilClass Liquid error: undefined method `keys' for nil:NilClass Liquid error: undefined method `keys' for nil:NilClass