Add this right above OnInit:
OnHour00:
if(gettime(5) == 1){
query_sql("DELETE FROM `acc_reg_num` WHERE `key` = '#DRewardCon'");
set .@size, query_sql("select account_id from `char` where online = 1", .@aid);
for(set .@i,0; .@i<.@size; set .@i,.@i+1) {
if(attachrid(.@aid[.@i])){
#DRewardCon = 0;
}
}
}
end;