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