Hi jyount,
Please, check your OPPID project.pcf file and see if it points to a correct AP_PROJECT_ROOT, where you do have your Plant project created. Look under the # AutoPlantDB Integration variables section:
# AutoPlantDB Integration variables
AP_MAPPED_SCHEMA = PlantProjectSchema.01.04
AP_MAPPING = PlantProjectSchema.01.04_Autoplant_PIW.01.04
AP_MAPPING_APPLICATION = Autoplant_PIW
AP_PROJECT_ID=0006
AP_PROJECT_ROOT=C:\ProgramData\Bentley\Plant V8i\Bentley Plant V8i Projects
Regards,
Justinas