fix bug

main.py

@@ -1312,6 +1312,7 @@ def interpolate_frames(frame1, frame2, times_to_interp, remove_bg):
 
     print(results)
     if remove_bg:
+        rembg_session = rembg.new_session("u2netp")
         results = [removebg(img, rembg_session, True) for img in results]
 
     for r in results: