Quiz not showing – jquery error

On my quiz page there is no quiz nor button showing. Questions will blink and then will hide itself on the page. Console shows JS error:

Uncaught TypeError: Cannot read property 'replace' of undefined
    at Function.v.template (underscore.min.js:2)
    at wp-util.min.js:2
    at Object.initPagination (qsm-quiz.js:272)
    at qsm-quiz.js:25
    at Function.v.each.v.forEach (underscore.min.js:2)
    at Object.init (qsm-quiz.js:23)
    at HTMLDocument.<anonymous> (qsm-quiz.js:598)
    at e (jquery.min.js:2)
    at t (jquery.min.js:2)

WP version 5.8 (showed alson on 5.6.4). QSM version 7.2.3

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