Hibás lekérdezés:
INSERT INTO log ( user_id, module, module_id, action, data, ip, host, date ) VALUES ( "", "Suggest", "", "start", NULL, "3.231.228.109", "ec2-3-231-228-109.compute-1.amazonaws.com", NOW() )
Incorrect integer value: '' for column 'user_id' at row 1