Topic: cannot access board or login

I have board installed OK and was working OK, added 4 pics in a categiory (1 or 4) and as user added a pic without an (optional) thumbnail - approved pic but did not appear in Category (same as the other 4 pics).

Ran thumbmail feature which seemed to run OK BUT now cannot access at

http://www.dogtales.org.uk/gallery/

get this error (below), not being familar with PHP etc not sure what to do next - cannot re-install? Do I have delete and start afresh, what went wrong?

SELECT cat_id
  FROM phpwebgallery_user_access
  WHERE user_id =
;
[mysql error 1064] 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 '' at line 3

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/dogtales/public_html/gallery/include/functions.inc.php on line 884

SELECT cat_id
  FROM phpwebgallery_user_group AS ug INNER JOIN phpwebgallery_group_access AS ga
    ON ug.group_id = ga.group_id
  WHERE ug.user_id =
;
[mysql error 1064] 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 '' at line 4

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/dogtales/public_html/gallery/include/functions.inc.php on line 884

DELETE FROM phpwebgallery_user_cache_categories
  WHERE user_id =
;
[mysql error 1064] 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 '' at line 2
  INSERT INTO phpwebgallery_user_cache_categories
    (user_id,cat_id,max_date_last,count_images,count_categories)
     VALUES(NULL,'7','2007-05-14 06:39:13','4','0')
    , (NULL,'9',NULL,'0','0')
    , (NULL,'8',NULL,'0','0')
    , (NULL,'6',NULL,'0','0')
;
[mysql error 1062] Duplicate entry '0-7' for key 1
DELETE FROM phpwebgallery_user_cache
  WHERE user_id =
;
[mysql error 1064] 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 '' at line 2
INSERT INTO phpwebgallery_user_cache
  (user_id, need_update, forbidden_categories, nb_total_images)
  VALUES
  (,'false','0',4)
;
[mysql error 1064] 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 ''false','0',4)' at line 4

Warning: Cannot modify header information - headers already sent by (output started at /home/dogtales/public_html/gallery/include/functions.inc.php:867) in /home/dogtales/public_html/gallery/include/page_header.php on line 102

Re: cannot access board or login

Moved to General Discussion
That's not PunBB wink