Hi, Li-Ming-
What OS (Linux, Mac, Windows?) and what type of computer (laptop, desktop, iPhone, raspberry pi?) are you using?
Is your "NumLock" key on, on your keyboard? If so, that might be the culprit. If your download got interrupted or something, then that could cause a problem (having a broken binary).
The things noted in those afni_system_check messages shouldn't affect the keyboard behavior.
--pt