SOL005NSFaultManagement_def.yaml: faultDetails should be an array
Please refer to the following line: https://forge.etsi.org/rep/nfv/SOL005/blob/master/src/SOL005/NSFaultManagement/definitions/SOL005NSFaultManagement_def.yaml#L101
faultDetails should be an array of strings, instead of a string.
Page 245 of the SOL005 specification has the following, which indicates a cardinality on
| faultDetails | String | 0..N | Provides additional information about the fault. |