SAP CPI- HTTP to SFTP & RFC scenario- (java.lang.String) error

Hi All,

I am facing one issue in CPI.

scenario is HTTP to SFTP and RFC using multicast.using exception process to set it as error and subprocess to triggere email alerts.

Earlier it was working fine but not today.

"com.sap.it.rt.adapter.http.api.exception.HttpResponseException: An internal server error occured: while trying to invoke the method java.lang.Class.newInstance() of a null object returned from org.apache.camel.spi.ClassResolver.resolveClass(java.lang.String)."

Can anyone please help with this.