Hi @adisalat, thanks for bringing to our awareness this error.
Sadly, you already opened an issue quite similar to what you have described here, on github. These string of issues are bound by a singular root cause - write access or permission. While the application allows for reading files and data from the SD Card, a user is restricted from making any modifications(rename, copy, cut, delete etc...) to the SD card. This report should have been incorporated with issue you opened here and here.
You could also check to be sure the application has write access permissions.
I apologise for any inconvenience experienced as a result. I look forward to your future contributions.
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