ERROR: http://www.summerland.com/logout

Query: INSERT INTO `ogopogo_user_log` (`userID` ,`logDate` ,`logAction` ,`ipAddress` ,`error` ,`serializedDetails`) VALUES ('', CURRENT_TIMESTAMP , 'logout', '18.207.108.182', '', 'Array');

DB: ogopogo

 Errno: 1366
 Error: Incorrect integer value: '' for column 'userID' at row 1
_SERVER data
    REMOTE_ADDR : 18.207.108.182
    REMOTE_PORT : 49906
SCRIPT_FILENAME : /home/citysites/www/index.php
 REQUEST_METHOD : GET
   QUERY_STRING : 
    REQUEST_URI : /logout
   HTTP_REFERER : 
       SERVER[SCRIPT_URL] : /logout
       SERVER[SCRIPT_URI] : http://www.summerland.com/logout
  SERVER[HTTP_USER_AGENT] : CCBot/2.0 (https://commoncrawl.org/faq/)
      SERVER[HTTP_ACCEPT] : text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
SERVER[HTTP_ACCEPT_LANGUAGE] : en-US,en;q=0.5
SERVER[HTTP_ACCEPT_ENCODING] : br,gzip
        SERVER[HTTP_HOST] : www.summerland.com
  SERVER[HTTP_CONNECTION] : Keep-Alive
             SERVER[PATH] : /sbin:/usr/sbin:/bin:/usr/bin
 SERVER[SERVER_SIGNATURE] : 
Apache/2.2.15 (CentOS) Server at www.summerland.com Port 80


  SERVER[SERVER_SOFTWARE] : Apache/2.2.15 (CentOS)
      SERVER[SERVER_NAME] : www.summerland.com
      SERVER[SERVER_ADDR] : 198.50.114.67
      SERVER[SERVER_PORT] : 80
      SERVER[REMOTE_ADDR] : 18.207.108.182
    SERVER[DOCUMENT_ROOT] : /home/citysites/www
     SERVER[SERVER_ADMIN] : admin@bonfiredev.ca
  SERVER[SCRIPT_FILENAME] : /home/citysites/www/index.php
      SERVER[REMOTE_PORT] : 49906
SERVER[GATEWAY_INTERFACE] : CGI/1.1
  SERVER[SERVER_PROTOCOL] : HTTP/1.1
   SERVER[REQUEST_METHOD] : GET
     SERVER[QUERY_STRING] : 
      SERVER[REQUEST_URI] : /logout
      SERVER[SCRIPT_NAME] : /logout
         SERVER[PHP_SELF] : /logout
SERVER[REQUEST_TIME_FLOAT] : 1611100365.362
     SERVER[REQUEST_TIME] : 1611100365
           POST[username] : 
              POST[email] : 
           POST[password] : 
    POST[passwordConfirm] : 
   POST[passwordReminder] : 
        POST[processForm] : 
             POST[ptoken] : 
             GET[/logout] :
Summerland.com Logout

You have successfully logged out. Continue . . .