Prestashop Fatal Error

[Gekyl]

Ciao ragazzi, da ieri sera prestashop mi da questo errore entrando nella sezione moduli, oltremodo non mi da la possibilità di caricare, modificare alcun prodotto. Avete idea di come possa risolvere?
Uso la distribuzione 1.6
 

[PrestaShop] Fatal error in module smarty_internal_write_file:
Uncaught exception 'SmartyException' with message 'unable to write file /var/www/clients/client1/web1/web/cache/smarty/compile/c7/50/ab/wrt53a9e14506b789.77845888' in /var/www/clients/client1/web1/web/tools/smarty/sysplugins/smarty_internal_write_file.php:44 Stack trace: #0 /var/www/clients/client1/web1/web/tools/smarty/sysplugins/smarty_internal_template.php(201): Smarty_Internal_Write_File::writeFile('/var/www/client...', 'compileTemplateSource() #2 /var/www/clients/client1/web1/web/tools/smarty/sysplugins/smarty_internal_template.php(286): Smarty_Internal_TemplateBase->fetch(NULL, NULL, NULL, NULL, false, false, true) #3 /var/www/clients/client1/web1/web/cache/smarty/compile/5c/9b/a2/5c9ba20aabbbf1075aeae6bcdbdefe905435b1f7.file.page.tpl.php(163): Smarty_Internal_Template->getSubTemplate('controllers/mod...', NULL, NULL, NULL, NULL, Array, 0) #4

 

 

Grazie in anticipo per le risposte