The problem seems to have been fixed in version 0.26.46. I was able to confirm that my save loaded. Basically, you should be able to play without any problems.
However, a new error occurred, so I contacted the developer. They said they will fix it at a later date.

@鹿神ヒハル
Thank you for the update and the mod work you do! The latest update works! I initially unsubscribed and then subscribed again (not sure if this step is needed but I thought it couldn't hurt). My saved game loaded just fine!

In the latest patch notes comments/discussion, the developers suggested going mod by mod to deselect each mod individually and load the game to see which mod is effected (if you use multiple mods). It was found by others and just now by myself this mod is at least one of the issues as I deselected this mod and my saved game loaded normally. Perhaps other mods might be effected as well, but this mod appears impacted. Love the mod and hope it's an easy fix!

@Anilike
I'm experiencing the same issue right now.
Do you have conclusive evidence that this mod is the cause?
I suspect it's a development issue.

Hey there, after updating game to latest version (0.26.45) this mod started causing infinite loading of saved game

现在有了，昨天架子还只有一个选项今天就有单独1000的架子了

@晃悠来了
どういった現象が起きたのかは書いてほしいですね。
仕様の変更があったようなので修正しました。

0.26.16版本貌似没用啊？

ありがとう!('ω')ノシェルフを作るときに種類が増えているから選ぶだけ、とっても簡単

任何堆叠都是正义的!

模组名称：沙盒-千架

*这个MOD是为那些想要创造性地享受游戏的人准备的。

我们将增加货架和书架，可以存储多达1000项的所有材料，而不考虑堆叠限制。
该MOD通过更改货架系统设置来增加堆叠数，因此它与更改单个材料堆叠数的MOD兼容。

如果你喜欢它，请给它一个很高的评价！