Upgrade to ejabberd 16.08
You need to create a new table to support the new OAuth feature
before starting ejabberd 16.08.
SQL database upgrade
Example for MySQL:
mysql -h host -u user database -p << EOF
CREATE TABLE oauth_token (
token varchar(191) NOT NULL PRIMARY KEY,
jid text NOT NULL,
scope text NOT NULL,
expire bigint NOT NULL
) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
EOF