By the way, Thank You very much. you're a hero.it's strange that you are missing all these files because in the v92092 update only the file "IconSet.rpgmvp" is modified. here's the whole system file, but if you still have missing files I advise you to reload the full version of the game and check that your anti virus is not the culprit.
I think the problem is my previous version is compressed version. That's why it's error again due to another file in img.
I will wait for the next compressed version, cause it's look like all the img folder a problem even after getting your file. there's another file that can't be read. again thank you.