Title: Multisite doesnt work
Last modified: August 24, 2016

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# Multisite doesnt work

 *  Resolved [RS-Systems](https://wordpress.org/support/users/rs-systems/)
 * (@rs-systems)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/multisite-doesnt-work-2/)
 * Debug give this error…
 *     ```
       WordPress-Datenbank-Fehler Specified key was too long; max key length is 1000 bytes für Abfrage CREATE TABLE wpmu15_srb_blacklist (
                       id mediumint(9) NOT NULL AUTO_INCREMENT,
                       item varchar(255) DEFAULT '' NOT NULL,
                       source tinyint(1),
                       works tinyint(1),
                       UNIQUE KEY id (id),
                       UNIQUE (item)
                   ) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci
       ```
   
 * Changing line 80 to UNIQUE (item (50)) solved the problem for now and the table
   was created.
 * [https://wordpress.org/plugins/spamreferrerblock/](https://wordpress.org/plugins/spamreferrerblock/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Didier Sampaolo](https://wordpress.org/support/users/dsampaolo/)
 * (@dsampaolo)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/multisite-doesnt-work-2/#post-6070286)
 * Hi, this problem is addressed in v2.22
    As you saw it, the lenght of the key 
   was a problem when using multibyte encodings such as utf8mb4.
 * Thank you very much ! 🙂

Viewing 1 replies (of 1 total)

The topic ‘Multisite doesnt work’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/spamreferrerblock.svg)
 * [SpamReferrerBlock](https://wordpress.org/plugins/spamreferrerblock/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Didier Sampaolo](https://wordpress.org/support/users/dsampaolo/)
 * Last activity: [10 years, 11 months ago](https://wordpress.org/support/topic/multisite-doesnt-work-2/#post-6070286)
 * Status: resolved