Fatal error: Uncaught Error: Class 'OCP\JSON' not found in /home/maciej/public_html/maciej/public html/tmp-owncloud1488559416/owncloud/apps/files_versions/ajax/rollbackVersion.php:28
Stack trace:
#0 {main}
thrown in /home/maciej/public_html/maciej/public html/tmp-owncloud1488559416/owncloud/apps/files_versions/ajax/rollbackVersion.php on line 28