「関連レコード一覧」の合計について

 Tipsの「関連レコードの項目を条件付きで集計」
https://cybozudev.zendesk.com/hc/ja/articles/203030394

を参考に実行しましたが、合計が表示されません。

コンソールに以下のメッセージが表示されたのですが、意味が分かりません。お分かりになられる方がおられましたらよろしくお願いします。

Uncaught TypeError: Cannot read property ‘value’ of undefined
at download.do?app=2&contentId=457&jsType=DESKTOP&hash=365904dfef3800854bcd41d1654bc55f1906f9d2:12
at show.js:239
at Array.forEach (<anonymous>)
at w (show.js:986)
at Kv (show.js:239)
at Lv (show.js:239)
at Oha (show.js:873)
at i4.update (show.js:2034)
at Z5 (show.js:911)
at $5 (show.js:911)

 

メッセージ1行目の追加情報です。

Uncaught TypeError: Cannot read property ‘value’ of undefined show.js:1043

show.js:1043をクリックすると、以下のように表示されました。

e.xj=function(a,b,c){this.rC.push([a,b,c]);this.Ph&&Gj(this);return this};e.then=function(a,b,c){var d,f,g=new mj(function(a,b){d=a;f=b});this.xj(d,function(a){a instanceof Mj?g.cancel():f(a)});return g.then(a,b,c)};Ui(Fj);t(Qj,xa);Qj.prototype.message=“Deferred has already fired”;Qj.prototype.name=“AlreadyCalledError”;t(Mj,xa);Mj.prototype.message=“Deferred was canceled”;Mj.prototype.name=“CanceledError”;Nj.prototype.J9=function(){delete Lj[this.Mc];throw this.Nj;};var Lj={};t(Rj,Fj);Rj.prototype.forEach=function(a,b,c,d){if(!m(a)||0===a.length)return this;w(a,function(a,g){this.next(qa(b,a,g),c,d)},this);return this};Rj.prototype.next=function(a,b,c){var d=null,f=b||10,g=new Rj(function(){try{(0,window.clearTimeout)(d)}catch(a){}},c);O(g,a);O(this,function(a){d=(0,window.setTimeout)(function(){g.ac(a)},f);return g},this);return this};t(ck,Vj);var Ck=null;var Oy={Gx:[“BC”,“AD”],QD:[“Before Christ”,“Anno Domini”],RD:“JFMAMJJASOND”.split(“”),UD:“JFMAMJJASOND”.split(“”),it:“January February March April May June July August September October November December”.split(" “),Tn:“January February March April May June July August September October November December”.split(” “),Kx:“Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec”.split(” “),Nx:“Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec”.split(” “),Px:“Sunday Monday Tuesday Wednesday Thursday Friday Saturday”.split(” "),