Worked a treat, Krzysztof – thanks!
My error is (and it says it twice, for some reason)
WordPress database error: [Specified key was too long; max key length is 767 bytes]
CREATE TABLE IF NOT EXISTS wp_jigoshop_downloadable_product_permissions
Which is ironic, as we don’t need it. We don’t have any downloadable products!
Hi – I’m not the original poster, but I am having the same error x 2 on activation. I have checked wp-config and I changed the default charset to utf8, deleted the database, recreated it, and still got the same error on activation.