Hi Camu,
Slimstats is the last plugin installed. Before that there were no MySQL errors.
I just checked and this error is being returned.
20150925T100520: aecnewstoday.com/wp-admin/admin.php
WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '=> 1
ORDER BY counthits DESC
LIMIT 0, 100' at line 4 for query
SELECT resource, COUNT(*) counthits
FROM wp_ojup_slim_stats
WHERE resource IS NOT NULL AND content_type <> "404" AND dt BETWEEN 1443139200 AND 1443215117
GROUP BY resource HAVING COUNT(visit_id) => 1
ORDER BY counthits DESC
LIMIT 0, 100 made by do_action('