Error Install Cacti

ERROR: Your Cacti database login account does not have access to the MySQL TimeZone database. Please provide the Cacti database account "select" access to the "time_zone_name" table in the "mysql" database, and populate MySQL's TimeZone information before proceeding

====== Solusi ======

# mysql -u root -p mysql

Enter password: 
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 670
Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> GRANT SELECT ON mysql.time_zone_name TO cacti@localhost;
Query OK, 0 rows affected (0.00 sec)

mysql>  flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye

======  Selesai ====== 

[mysqld]

character-set-server=utf8mb4
collation-server=utf8mb4_unicode_ci

Error 3

failed to open data file.
poller may not have run yet

solution 3

su -
su cacti
cd /where/cacti/lives
php -q poller.php --force