Schedule Backup Doesnt Work

Hello,
I have activated a scheduled backup in my Cyberpanel, but no backup is made. Anyone can help? Previously scheduled backups can run and I use rclone to upload to Google Drive automatically before it works. This also happened on my other server that I installed cyberpanel too.

Error Logs:

2019-06-22 09:30:56.554817 [INFO] [CLEANUP] Send signal: 15 to process: 359
2019-06-22 09:51:17.026852 [NOTICE] [11174] Cmd from child: [extappkill:941:-3]
2019-06-22 09:51:17.026884 [INFO] [CLEANUP] Send signal: 15 to process: 941
2019-06-22 09:58:21.325884 [NOTICE] [11174] Cmd from child: [extappkill:1044:-3]
2019-06-22 09:58:21.325924 [INFO] [CLEANUP] Send signal: 15 to process: 1044
2019-06-22 09:58:25.144499 [NOTICE] [11174] Cmd from child: [extappkill:1053:-3]
2019-06-22 09:58:25.144537 [INFO] [CLEANUP] Send signal: 15 to process: 1053
2019-06-22 09:59:06.185276 [NOTICE] [11174] Cmd from child: [extappkill:1135:-3]
2019-06-22 09:59:06.185302 [INFO] [CLEANUP] Send signal: 15 to process: 1135