Thank goodness. The problem is solved.
Added 2020-03-26 08:52:23 +0000 UTC我重新安装了RPG Maker VA并且删除了一些用于测试的项目文件。现在可以保存和管理项目了，虽然保存速度还是一如既往的慢......好在经过一个夜晚的各种尝试，问题解决了。多谢大家。
I reinstalled RPG Maker VA and deleted some projects which were used for testing scripts. For now, I could save and manage all rest my projects, although the saving speed is still quite slow......However, after a night's fight, the problem is solved. Anyway, thanks, guys.
