when the failure of sanitation led to chronic mold and rodent infestations the work sessions in the warehouses were not only objectionable for the involuntary workers because they were unpaid but also because they were under disgusting conditions.

Please write the text above using proper case.
When the failure of sanitation led to chronic mold and rodent infestations the work sessions in the warehouses were not only objectionable for the involuntary workers because they were unpaid but also because they were under disgusting conditions.