Getting this error in the logs in PRPC 7.1.8 -

2017-05-05 07:20:22,910 [    WebContainer : 8] [TABTHREAD1] [                  
 ] [    ] (ernal.util.PRDateTimeUtilsImpl) ERROR
"Operator ID" - Error in parsing
given version: null.Falling back to default version 1.

Any idea what is the cause? Recently intalled HFIX-33499 which has changes to the PRDateTimeUtilsImpl class.

Thanks