Hibás lekérdezés:
INSERT INTO log ( user_id, module, module_id, action, data, ip, host, date ) VALUES ( "", "Suggest", "autoszerelo", "category", NULL, "18.234.236.14", "ec2-18-234-236-14.compute-1.amazonaws.com", NOW() )
Incorrect integer value: '' for column 'user_id' at row 1