Error: String index out of range: 24?

[simoncn]

The added-dates.txt file is in your ~/Library/MinimServer/recent folder. To view this folder in macOS Finder, select 'Go to folder' and type this exact string as the folder location. The ~/Library folder is not the same as the /Library folder that Finder displays in its folder list.

When you have located the added-dates.txt file, attach it to a forum post here as a file attachment. Don't copy the contents into a post inline. I will look at the file to see what has caused this error message.