Hi,
I'm new to piwigo but I often use cms...
I have a problem with the Concours Photo plugin: it gives me so many errors and I don't know how to fix it...

This is the code in configuration...ideas?

Warning: Undefined array key "concours_list" in /home/u278913251/domains/wibelink.it/public_html/gallerie/_data/templates_c/p6jhns^b177494882ec7cf177258e363ca913a0ece6ef8d_0.file.manage.tpl.php on line 188

Warning: Attempt to read property "value" on null in /home/u278913251/domains/wibelink.it/public_html/gallerie/_data/templates_c/p6jhns^b177494882ec7cf177258e363ca913a0ece6ef8d_0.file.manage.tpl.php on line 188

Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/u278913251/domains/wibelink.it/public_html/gallerie/_data/templates_c/p6jhns^b177494882ec7cf177258e363ca913a0ece6ef8d_0.file.manage.tpl.php:188 Stack trace: #0 /home/u278913251/domains/wibelink.it/public_html/gallerie/include/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_6411d7d47c3e83_72781139() #1 /home/u278913251/domains/wibelink.it/public_html/gallerie/include/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #2 /home/u278913251/domains/wibelink.it/public_html/gallerie/include/smarty/libs/sysplugins/smarty_internal_template.php(216): Smarty_Template_Compiled->render() #3 /home/u278913251/domains/wibelink.it/public_html/gallerie/include/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #4 /home/u278913251/domains/wibelink.it/public_html/gallerie/include/smarty/libs/sysplugins/smarty_internal_templatebase.php(116): Smarty_Internal_TemplateBase->_execute() #5 /home/u278913251/domains/wibelink.it/public_html/gallerie/include/template.class.php(469): Smarty_Internal_TemplateBase->fetch() #6 /home/u278913251/domains/wibelink.it/public_html/gallerie/include/template.class.php(392): Template->parse() #7 /home/u278913251/domains/wibelink.it/public_html/gallerie/plugins/ConcoursPhoto/admin/manage.php(300): Template->assign_var_from_handle() #8 /home/u278913251/domains/wibelink.it/public_html/gallerie/plugins/ConcoursPhoto/admin.php(75): include_once('/home/u27891325...') #9 /home/u278913251/domains/wibelink.it/public_html/gallerie/admin/plugin.php(53): include_once('/home/u27891325...') #10 /home/u278913251/domains/wibelink.it/public_html/gallerie/admin.php(345): include('/home/u27891325...') #11 {main} thrown in /home/u278913251/domains/wibelink.it/public_html/gallerie/_data/templates_c/p6jhns^b177494882ec7cf177258e363ca913a0ece6ef8d_0.file.manage.tpl.php on line 188