3.2.2 has 2 errors in migrations which prevent phpBB from updating/installing:

1)

https://github.com/phpbb/phpbb/blob/master/phpBB/phpbb/db/migration/data/v32x/merge_duplicate_bbcodes.php#L16

Fatal error: Uncaught Error: Call to a member function get() on null in /usr/local/www/forum.info/phpbb/db/migration/data/v32x/merge_duplicate_bbcodes.php:49

The migration must extend container_aware_migration instead of just migration class.

2)

https://github.com/phpbb/phpbb/blob/master/phpBB/phpbb/db/migration/data/v32x/fix_user_styles.php#L42

Fatal error: Call to a member function fetch_array() on resource in /home/weather/www/phpbb/db/migration/data/v32x/fix_user_styles.php on line 42

dbal object is missing.