Bugs that cause logcat errors and even app crashes

[Srrsrr123]

Describe the bug

Dear developer!
 In the process of using it, I found two bugs causing the app to crash. As shown in the figure, when pressing the button, the app crashes. The overall experience of the software is good. You can see that the design is very attentive. Thank you very much for the efforts of the developers all the time. I hope to receive a reply.

Screenshots

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[talengu]

Describe the bug

Dear developer!
In the process of using it, I found two bugs causing the app to crash. As shown in the figure, when pressing the button, the app crashes. The overall experience of the software is good. You can see that the design is very attentive. Thank you very much for the efforts of the developers all the time. I hope to receive a reply.

Screenshots

1、

2、

很感谢使用此软件，多年没更新了。
有时间我修复一下这个问题。
若你感兴趣也可帮忙修复。

祝好！

[Srrsrr123]

Thank you very much for your reply in your busy schedule, it is very helpful to me.