Fixed an error message
Fixed an error message


Former-commit-id: 56e99793025f3a632799aad53d1a1fde76877bfc [formerly 63aef97152a40ec2ec8bc74b1fea1ffa6afa83ee]
Former-commit-id: b2bcba4ed896b089767efb1db0661f2b73dad35a
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine