TypeError: c is null

　　　　　　　　　　bookmarklet.js:1

"Error logged: {"m":"Script error.","f":"http://sa.yona.la/javascripts/bookmarklet.js?t=1409536466568 line 1 > eval","c":"0","s":[],"csm":"v5 onerror callee","pageURL":"http://www.amazon.co.jp/gp/product/B00N1EUJHG/ref=ox_sc_sfl_title_2?ie=UTF8&psc=1&smid=AN1VRQENFRJN5","logLevel":"FATAL"}" Object { m: "Script error.", f: "http://sa.yona.la/javascripts/bookmarklet.js?t=1409536466568 line 1 > eval", l: undefined, c: "0", s: Array[0], name: undefined, type: undefined, csm: "v5 onerror callee", pageURL: "http://www.amazon.co.jp/gp/product/B00N1EUJHG/ref=ox_sc_sfl_title_2?ie=UTF8&psc=1&smid=AN1VRQENFRJN5", logLevel: "FATAL" }

　　　　　　　　　　csm-all-min-1735127018._V1_.js:52

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