Same here after updated to the new version crash all groups and i no have any backup
[2018-08-25 18:44:52] [ERROR] 1704 | Got multiple channel heads! (Count 6)
[2018-08-25 18:44:52] [ERROR] 1704 | Try to appending them
[2018-08-25 18:44:52] [ERROR] 1704 | Missing server's default server group! (Id: 0)
[2018-08-25 18:44:52] [ERROR] 1704 | Using 11796 (Server Admin) instead!
[2018-08-25 18:44:52] [ERROR] 1704 | Missing server's default channel group! (Id: 0)
[2018-08-25 18:44:52] [ERROR] 1704 | Using 11799 (Channel Admin) instead!
[2018-08-25 18:44:52] [ERROR] 1704 | Missing server's default channel admin group! (Id: 0)
[2018-08-25 18:44:52] [ERROR] 1704 | Using 11799 (Channel Admin) instead!