Fatal error: Uncaught mysqli_sql_exception: Incorrect integer value: '' for column `abaecker`.`log`.`user-id` at row 1 in /var/www/html/include/d_functions.php:24 Stack trace: #0 /var/www/html/include/d_functions.php(24): mysqli_query() #1 /var/www/html/page.php(27): d_log() #2 {main} thrown in /var/www/html/include/d_functions.php on line 24