Reduced log.error to log.warning for requests for unknown namespace or unknown prefix
Reduced log.error to log.warning for requests for unknown namespace or unknown prefix

vholland/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg,vholland/schemaorg,vholland/schemaorg,vholland/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg