sometimes that works, but quite often it does not.
I suggest you upgrade from 3.0.11 to 3.1.12 first.
get the files here:
https://download.phpbb.com/pub/release/ ... 3.1.12.zip
instructions here:
https://www.phpbb.com/support/docs/en/3 ... /upgrade3/
once you have that working then make a database backup.
then follow the instructsions to upgrade from 3.1 to 3.2.1
files here:
https://download.phpbb.com/pub/release/ ... -3.2.1.zip
instructions here:
https://www.phpbb.com/support/docs/en/3 ... upgrade31/
then make a database backup.
then follow the instructions to update from 3.2.1 to 3.2.2
files here:
https://www.phpbb.com/files/release/phpBB-3.2.2.zip
instructions here:
https://www.phpbb.com/support/docs/en/3 ... ating-32x/
then make a new b ackup of the database.
this takes a little time but always works for me.
remember, backup, backup, backup the database at each step. that way if things go wrong you do not have to start over at the beginning.
luck,
robert