Mandatory information about my setup:

Have I searched the tickets before posting? yes
Have I searched the forum before posting? yes
Have I read the documentation before posting (which pages?)? yes
Joomla! version: 3.4.1
PHP version: 5.4.35
MySQL version: Version: 4.0.10
Hotspots version: Hotspots Professional 5.1.4
Direct link to the page that shows the issue: http://siontourisme.ch/index.php/fr/pratique/plan-de-la-ville


Description of my issue:
Hello,
I installed the new version of hotspots: 5.1.4
I have these messages for a lot of my hotspots:
The file: 8eb4c3bfe6d15b79d9e2e16ea7076a9a-cep_vigne1.jpg in Item with id 3 is not existing. Please manually delete this file entry. Otherwise the gallery won't work!

But how can I delette manually the file entry?


THANK YOU
OLIVIER