WordPress-Datenbank-Fehler: [Specified key was too long; max key length is 767 bytes]ALTER TABLE `wp_e_submissions`
ADD INDEX `main_meta_id_index` (`main_meta_id`),
ADD UNIQUE INDEX `hash_id_unique_index` (`hash_id`),
ADD INDEX `hash_id_index` (`hash_id`),
ADD INDEX `type_index` (`type`),
ADD INDEX `post_id_index` (`post_id`),
ADD INDEX `element_id_index` (`element_id`),
ADD INDEX `campaign_id_index` (`campaign_id`),
ADD INDEX `user_id_index` (`user_id`),
ADD INDEX `user_ip_index` (`user_ip`),
ADD INDEX `status_index` (`status`),
ADD INDEX `is_read_index` (`is_read`),
ADD INDEX `created_at_gmt_index` (`created_at_gmt`),
ADD INDEX `updated_at_gmt_index` (`updated_at_gmt`),
ADD INDEX `created_at_index` (`created_at`),
ADD INDEX `updated_at_index` (`updated_at`)