Problem in Fast R-CNN

Hello, I tried the Faster R-CNN above but I have very bad results.
I trained 100 images on 100 epoch, but when i passed test images it doesn’t recognize any of given images means it didn’t recognize bounding boxes around images at least wrong prediction is expected but no bounding boxes are detected.
Why it could be? Could it be only due to the number of epoch and images? I expected wrong predictions but not so wrong.
I really need help, please

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