In version 0.50.2, I get an error in "Western Delgar Forest: Clearing" (very early on, just after Yarra joins my party) that prevents me from playing further:
Cache:106:in `initialize': failed to create bitmap, RGSSError
from Cache:106:in `new'
from Cache:106:in `normal_bitmap'
from Cache:91:in `load_bitmap'
from Cache:57:in `picture'
from Sprite_Picture:43:in `update_bitmap'
from Sprite_Picture:30:in `update'
from Extra Picture Viewport:127:in `block in update_pictures'
from Game_Pictures:26:in `block in each'
from Game_Pictures:26:in `each'
from Game_Pictures:26:in `each'
from Extra Picture Viewport:125:in `update_pictures'
from Spriteset_Map:184:in `update'
from Fog:407:in `update'
from Scene_Map:65:in `update'
from Scene_Base:14:in `main'
from SceneManager:23:in `run'
from Main:8:in `block in <main>'