Why is phpBB not porting?

Question

phpBB

Hello. I can't move the forum.
On the new hosting it gives the following error

General Error
SQL ERROR [ mysqli ]

Access denied for user 'plodpitomn_forum'@'localhost' (using password: YES) [1045]

BACKTRACE

FILE: (not given by php)
LINE: (not given by php)
CALL: msg_handler()

FILE: [ROOT]/phpbb/db/driver/driver.php
LINE: 999
CALL: trigger_error()

FILE: [ROOT]/phpbb/db/driver/mysqli.php
LINE: 109
CALL: phpbb\db\driver\driver->sql_error()

FILE: [ROOT]/phpbb/di/container_builder.php
LINE: 549
CALL: phpbb\db\driver\mysqli->sql_connect()

FILE: [ROOT]/phpbb/di/container_builder.php
LINE: 205
CALL: phpbb\di\container_builder->inject_dbal_driver()

FILE: [ROOT]/phpbb/di/container_builder.php
LINE: 412
CALL: phpbb\di\container_builder->get_container()

FILE: [ROOT]/phpbb/di/container_builder.php
LINE: 158
CALL: phpbb\di\container_builder->load_extensions()

FILE: [ROOT]/common.php
LINE: 115
CALL: phpbb\di\container_builder->get_container()

FILE: [ROOT]/index.php
LINE: 23
CALL: include('[ROOT]/common.php')

Tell me what's wrong...

Answer 1

Access denied for user 'plodpitomn_forum'@'localhost' (using password: YES) [1045]

Invalid MySQL username and/or password.