Hello/Hi/Greetings,

on every of the public pages of my Piwigo site I get the same MySQL error: Warning:  [mysql error 1062] Duplicate entry '1550543' for key 'PRIMARY'

I've found several online Piwigo sites with the same problem but so far no solution. When I try to use phpMyAdmin to look up the 1550543 ID in piwigo_history, there is no such entry. The list of entries stops at ID 1550542.

Has anyone a suggestion how to solve this?

Piwigo version: 2.9.3
PHP version: 5-54STABLE-STANDARD
MySQL version: 5.6.19
Piwigo URL: http://fotos.pfadfinder-tennengau.at/