I don't know if this is appropriate thread to report but, whatever.
Tried to browse PSO-World using my phone, but giving this "Invalid Forum" message, but it's all work just fine using desktop Mozilla Firefox.
Tried to clear cache on my phone browser, but still giving me same result.
Problem persist for all forum section, news and homepage is accessible.
Spoiler!
Spoiler!
Edit: Seems like everything run just fine now.
Connect With Us