I have been using a child theme with this plugin for a long time and it worked well without any problems so thanks for creating it. However, any changes I try to make now result in an error file created, for example page.php_error_2016_06_02 etc. and the original stays the same. Any ideas about why this might be?
Thanks for the nice words!
This could be some permissions errors. Can you make sure that php has write permissions? Do check with your hosting.
The plugin tried not to loose any data which could be annoying.