I cannot see my Training metrics for multilabel classification

[Rafay_Mustafa]

Hi I just trained my multilabel classification model for Writer Identification. I cannot see the training metrics, as it seems it is unable to load them.

Also I would like to know what model does Roboflow use to train the data on like yolov5, yolov8, resnet etc?

[Rafay_Mustafa]

here is the picture of the error