My Process status is in progress but all the subprocess are completed

Question

Hi,
I have a problem, i started a process with 4 subprocess. One of the Subprocess didn't finish its activity and it's status remain "in progress".
In the context data of subprocess i didn't see any information. Now if i try to suspend or cancel it i get this error message:
Error during the process.Number and instance Id's of the processes which can not be suspended 
how can i delete it from Process istance?

Answer 1

I tried to suspend or cancel the process but i can't do it.
the system told me the error in the first post.
if i go in the history of process i have this log:
10-gen-2011 16.10.42 Application result Web service operation taskRun of interface http://test.com/test/#BPM has completed successfully Application
10-gen-2011 16.10.42 Current user temporarily changed to "Identity changed to user <service user>." System
10-gen-2011 16.10.42 Data object updated Data object ProcessContext has been updated Data flow
10-gen-2011 16.10.42 Current user temporarily changed to "Identity changed to user SAP_BPM_Service." System
10-gen-2011 16.10.42 Application launched Web service operation taskRun of interface http://test.com/test/#BPM has been called successfully Application
10-gen-2011 16.10.42 Application result Web service operation getTaskKey of interface http://test.com/test/#BPM has completed successfully Application
10-gen-2011 16.10.42 Current user temporarily changed to "Identity changed to user <service user>." System
10-gen-2011 16.10.42 Data object updated Data object ProcessContext has been updated Data flow
10-gen-2011 16.10.42 Current user temporarily changed to "Identity changed to user SAP_BPM_Service." System
10-gen-2011 16.10.42 Application launched Web service operation getTaskKey of interface http://test.com/test/#BPM has been called successfully Application
10-gen-2011 16.10.42 Process initiated Processo 'New Pool 0' iniziato Control flow
10-gen-2011 16.10.42 Data object created Data object TextVariables has been created Data flow
10-gen-2011 16.10.42 Data object created Data object Administrators has been created Data flow
10-gen-2011 16.10.42 Data object created Data object Auto_PotentialOwners has been created Data flow
10-gen-2011 16.10.42 Data object updated Data object ProcessContext has been updated Data flow
10-gen-2011 16.10.42 Data object updated Data object Auto_ExcludedOwners has been updated Data flow
10-gen-2011 16.10.42 Data object updated Data object ErrorHandle_PotentialOwners has been updated Data flow
10-gen-2011 16.10.42 Data object updated Data object ErrorHandle_ExcludedOwners has been updated
with no error, but for now the subprocess still in progress and it's don't finish.