It might have something to do with your thumbnail folder. It might be a misnumbered card name. Try this:
Look for the XYZ named Enthusiastic Coaching King Giantrainer and look at the number placed next to it in brackets [XXXXXXXX].
then go into your YGOPro folder
pics > thumbnail > 200000005.jpg
rename that file into the correct number you found for Giantrainer.
Find Yaksha's pic in that folder and rename it 20000005.jpg.
Hopefully it isn't too hard to find. In the previous version it was 20000009 so try there first. I'm downloading it myself.
If this doesn't fix it, then it's probably an error in Pro itself. Like a typo.
Not sure what the other error is though. And why is your left panel a squashed version of the YGO3 loading screen?