Don't mean to hijack this, but I'd rather not make a new thread when this one is bumped to the top. I am also getting Internal Server Error, but this is after changing

BEGIN { require "strings_en.pl"; }

to

BEGIN { require "strings_jp.pl"; }

in wakaba.pl, afterwards trying to revert the changes will not solve the problem.

>>3

Double-check your SQL_DBI_SOURCE, SQL_USERNAME and SQL_PASSWORD in config.pl against what is given in "MySQL Databases" of your cPanel. The database will be displayed something like;

x_database

Users in discussion
x_user (Privileges: ALL PRIVILEGES) 

Hope that helps.