Issue Fashion sense outfit saving

[Person123]

https://smapi.io/log/f26dd78c12fb4ccea28bdcf9eb14ed48

This error appears when I try to save an outfit on fashion sense. I'm new to modding so I don't know what to do. I think this is causing my outfits to not save.
Can you help?

 

[ycxlh]

Close Any Applications That Might Be Accessing the File-Outfits.json