Ok I’ll reply to myself Image may be NSFW.
Clik here to view.
In this post I found the solution.
So if you have the same issue, please try :
ALTER TABLE `matomo_tagmanager_tag` ADD COLUMN `description` VARCHAR(1000) NOT NULL DEFAULT '' AFTER `name`;
ALTER TABLE `matomo_tagmanager_trigger` ADD COLUMN `description` VARCHAR(1000) NOT NULL DEFAULT '' AFTER `name`;
ALTER TABLE `matomo_tagmanager_variable` ADD COLUMN `description` VARCHAR(1000) NOT NULL DEFAULT '' AFTER `name`;
Regards,
j.
