Redmine

Hello,
Need hellp on the thumbnail failed to find have no idea anymore how to fix this. In issue if you add the attachment it dosent show small image of inputed image but thelink to image working as it should just dosent show the small image as you can se in image i uploded.

In log it says:

Started GET "/attachments/thumbnail/7" for 111.111.1.11 at 2021-09-06 17:01:57 +0300
Processing by AttachmentsController#thumbnail as HTML
  Parameters: {"id"=>"7"}
  Current user: admin (id=1)
Creating thumbnail failed (pid 97475 exit 1):
Command: '/usr/local/bin/convert' '/usr/local/www/redmine/files/2021/09/210901111738_4.jpg' -auto-orient -thumbnail '1000x1000>' '/usr/local/www/redmine/tmp/thumbnails/a78495fde3baccb50ef5da33a2de8a95c7c6aea5106ce804d6b8b9275f44626c_462889_1000.thumb'
Completed 404 Not Found in 203ms (ActiveRecord: 2.1ms)

Environment:

  Redmine version                4.1.2.stable
  Ruby version                   2.7.3-p183 (2021-04-05) [amd64-freebsd13]
  Rails version                  5.2.6
  Environment                    production
  Database adapter               Mysql2

Maby the thumbnail href is bad but no idea were to check were the code is because in attachments/_links.html.erb

<% if defined?(thumbnails) && thumbnails %>
  <% images = attachments.select(&:thumbnailable?) %>
  <% if images.any? %>
  <div class="thumbnails">
    <% images.each do |attachment| %>

      <div><%= thumbnail_tag(attachment) %></div>
    <% end %>
  </div>
  <% end %>
<% end %>

but this looks good only the line of thumbnail_tag(attachment) no idea were this directs

and were all this files/images saves maby the problem is because it dosent save image in that folder whitch it needs to be saved and agian were it should be saved???