Error on first time entering "Prestige Hardcapped"

[Darlat]

The first time (this session) you enter "Prestige Hardcapped" transcended challenge it gives this error:

Decimal.prototype.pow10@https://loader3229.github.io/milestone-tree/js/technical/break_eternity.js:1865:35
Decimal.prototype.pow@https://loader3229.github.io/milestone-tree/js/technical/break_eternity.js:1846:42
Decimal.prototype.root@https://loader3229.github.io/milestone-tree/js/technical/break_eternity.js:1902:19
getNextAt@https://loader3229.github.io/milestone-tree/js/game.js:66:15
updateTemp@https://loader3229.github.io/milestone-tree/js/technical/temp.js:103:23
interval<@https://loader3229.github.io/milestone-tree/js/game.js:422:2

Loading while inside it produces this:

Decimal.prototype.pow10@https://loader3229.github.io/milestone-tree/js/technical/break_eternity.js:1865:35
Decimal.prototype.pow@https://loader3229.github.io/milestone-tree/js/technical/break_eternity.js:1846:42
Decimal.prototype.root@https://loader3229.github.io/milestone-tree/js/technical/break_eternity.js:1902:19
getNextAt@https://loader3229.github.io/milestone-tree/js/game.js:66:15
updateTemp@https://loader3229.github.io/milestone-tree/js/technical/temp.js:103:23
load@https://loader3229.github.io/milestone-tree/js/utils/save.js:213:2
onload@https://loader3229.github.io/milestone-tree/:1:1

Here's a save from just before entering the challenge:
Save.txt