Images now not working

[Jamo]

Is anyone having this issue, my images were working great, and thumbnails showing fine. Now for some reason they have stopped and all I get is:



This is the code that I have in my config file

$enable_uploads = 1;
$upload_field_type = 'ajax';
$upload_directory = '';
$max_upload_file_size = 20000000;

$allowed_file_exts_ar[0] = 'jpg';
$allowed_file_exts_ar[1] = 'gif';
$allowed_file_exts_ar[2] = 'tif';
$allowed_file_exts_ar[3] = 'tiff';
$allowed_file_exts_ar[4] = 'png';
$allowed_file_exts_ar[5] = 'txt';
$allowed_file_exts_ar[6] = 'rtf';
$allowed_file_exts_ar[7] = 'doc';
$allowed_file_exts_ar[8] = 'xls';
$allowed_file_exts_ar[9] = 'htm';
$allowed_file_exts_ar[10] = 'html';
$allowed_file_exts_ar[11] = 'csv';
$allowed_file_exts_ar[12] = 'pdf';
$allowed_file_exts_ar[13] = 'jpeg';
$allowed_file_exts_ar[14] = 'docx';
$allowed_file_exts_ar[15] = 'xlsx';

$allowed_file_exts_mimi_ar[0] = 'image/jpg';
$allowed_file_exts_mimi_ar[1] = 'image/gif';
$allowed_file_exts_mimi_ar[2] = 'image/tif';
$allowed_file_exts_mimi_ar[3] = 'image/tiff';
$allowed_file_exts_mimi_ar[4] = 'image/png';
$allowed_file_exts_mimi_ar[5] = 'text/plain';
$allowed_file_exts_mimi_ar[6] = 'application/rtf';
$allowed_file_exts_mimi_ar[7] = 'application/msword';
$allowed_file_exts_mimi_ar[8] = 'application/vnd.ms-excel';
$allowed_file_exts_mimi_ar[9] = 'text/html';
$allowed_file_exts_mimi_ar[10] = 'text/html';
$allowed_file_exts_mimi_ar[11] = 'tect/plain';
$allowed_file_exts_mimi_ar[12] = 'application/pdf';
$allowed_file_exts_mimi_ar[13] = 'image/jpeg';
$allowed_file_exts_mimi_ar[14] = 'application/msword';
$allowed_file_exts_mimi_ar[15] = 'application/vnd.openxmlformats-officedocument.spreadsheet.sheet';

$allowed_all_files = 0;

$picture_thumbnail_results_grid_max_width = 40;
$picture_thumbnail_results_grid_max_height = 0;
$picture_thumbnail_details_max_width =150;
$picture_thumbnail_details_max_height = 0;

Which I think is correct.

Any ideas what I have done?

Cheers,

Jamo