Warning Missing Argument 2 for wpdb::prepare()

Hello,

Thank you for reporting this.
We will release a update with a fix for this within 7 days.
in the mean time you can fix it manually:

key4ce-osticket-bridge/admin/ost-config.php
find:

$ost_wpdb->query($wpdb->prepare("
    CREATE TABLE IF NOT EXISTS ".$keyost_prefix."ticket__cdata (
      ticket_id int(11) unsigned NOT NULL DEFAULT '0',
      subject mediumtext,
      priority mediumtext,
      priority_id bigint(20) DEFAULT NULL,
      PRIMARY KEY (ticket_id)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;"));

replace with:

$ost_wpdb->query($wpdb->prepare("
    CREATE TABLE IF NOT EXISTS %s (
      ticket_id int(11) unsigned NOT NULL DEFAULT '0',
      subject mediumtext,
      priority mediumtext,
      priority_id bigint(20) DEFAULT NULL,
      PRIMARY KEY (ticket_id)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;",$keyost_prefix."ticket__cdata"));

Regards,
Marco