Breaks and erases existing notes

[YarekTyshchenko]

It seems that this app is having major issues with High Sierra. I could live with the error dialog, but today I find that it has cleared the contents on around 200 notes (thankfully only a small portion of total). I had to manually recover the contents via simplenote's web client.

This is very discouraging from an app I used to trust with a lot of important data. Needless to say that now I store notes in git.