Hi Jean,
Kindly check whether the ccms agent are running or not.
also paste the version of sap ccms agent.
Execute the below steps
1. Removed agent.lock file from the directory /usr/sap/<SID>/<Central Instance/dialog instance>/log/sapccms<x> (if java sapccmsr and if abap sapccm4x)
2.Executed the SAPCONTROL command
sapcontrol –nr <instance number> -function RestartService
With Regards
Ashutosh Chaturvedi