inst is undefined on countdown

[Auresky]

I have 3 countdown timers which are loaded with a json array. When I want to recharge them they block and this error appears:

TypeError: inst.options is undefinedjquery.countdown.js:682:1 jQuery 4 _generateHTML _updateCountdown _updateElems timerCallBack

Here my codepen : https://codepen.io/Logobi/pen/KKdmNby?editors=1010