org.cmdbuild.workflow.model.WorkflowException: error advancing process = Flow{id=29211440, process=CorrectiveMaint, tasklist=CM03-Execution[thz2idi6dupvuiz3z7qtyt04]@Team, status=OPEN} for task = TaskDefinitionImpl{id=CM03-Execution, description=CM03 - Execution}, caused by: org.cmdbuild.workflow.river.engine.task.scriptexecutors.WorkflowScriptProcessingException: error running workflow script for task = CM-SYS03.2-StepOperations within flow = uehlv752cva8pi15jktdh01f, plan = xl6k162tymja5zwsw99my7d3 (Process_correctivemaint), caused by: org.cmdbuild.utils.script.groovy.GroovyScriptException: error executing groovy script at line = 40, near < cmdb.existingCard(“MaintProcess”, ProcessId) >, caused by: java.lang.IllegalArgumentException: invalid non-leaf class = ClasseImpl{name=MaintProcess} ,When I assign to team, an error appears, I can’t find the groovy script in question, please help me.