URGENT - Prestashop Admin ne marche pas, Plesk KO et code FTP KO

Bonjour,

L'admin de prestashop est KO et aussi des produits sont KO.
Plesk KO, code FTP ne marche plus...

admin de prestashop:
(1/1) ContextErrorException
Warning: file_exists(): open_basedir restriction in effect. File(/var/www/vhosts/composer.json) is not within the allowed path(s): (/var/www/vhosts/xxxxxxx.com/:/tmp/)

in Kernel.php line 362
at Kernel->getProjectDir()
in Kernel.php line 710
at Kernel->getKernelParameters()
in AppKernel.php line 81
at AppKernel->getKernelParameters()
in Kernel.php line 822
at Kernel->getContainerBuilder()
in Kernel.php line 770
at Kernel->buildContainer()
in Kernel.php line 640
at Kernel->initializeContainer()
in Kernel.php line 135
at Kernel->boot()
in Kernel.php line 195
at Kernel->handle(object(Request), 1, false)
in index.php line 88

produits :
ontextErrorException
Notice: Undefined index: Désignation

in f9bbb7276a8cfd1a64dec2a8202bbda0d5293f86_2.file.tablecombz-table-default_v1.7.tpl.php line 945
at content_5ef51090c8d6b4_[Téléphone visible pour les membres Pro](object(SmartyDevTemplate))
in smarty_template_resource_base.php line 123
at Smarty_Template_Resource_Base->getRenderedTemplateCode(object(SmartyDevTemplate))
in smarty_template_compiled.php line 114
at Smarty_Template_Compiled->render(object(SmartyDevTemplate))
in smarty_internal_template.php line 206
at Smarty_Internal_Template->render(false, 0)
in smarty_internal_templatebase.php line 232
at Smarty_Internal_TemplateBase->_execute(object(SmartyDevTemplate), null, null, null, 0)
in smarty_internal_templatebase.php line 116
at Smarty_Internal_TemplateBase->fetch(null, null, null, null, false, true, false)
in SmartyDevTemplate.php line 41
......

Merci