Fix PIL Bug

Videobook/AVCombiner.py

@@ -3,7 +3,7 @@ from gtts import gTTS
 from io import BytesIO
 from tempfile import NamedTemporaryFile
 from moviepy.editor import AudioFileClip, ImageClip, CompositeVideoClip, concatenate_videoclips
-
+import numpy as np
 class AVCombiner:
 
   def __call__(self, images, texts, output_path):
@@ -24,7 +24,7 @@ class AVCombiner:
             audio_clip = AudioFileClip(audio_tempfile.name)
 
             # create the image clip object
-            image_clip = ImageClip(image)
+            image_clip = ImageClip(np.array(image))
 
             # set the duration of the image clip to be 200ms
             image_clip = image_clip.set_duration(audio_clip.duration+2)