smarty error line 678 after update

[taldoc]

hi,

alter updating prestashop from 1.6.1.16 to 1.16117 or 20 or 1.6.1.22 latest version now, is there one error.

If i open invoice there is onlx a white page. on the Serverlog is the error messege:

AH01071: Got error 'PHP message: PHP Fatal error: Uncaught --> Smarty: Missing template name <-- \n thrown in /var/www/vhosts/"mydomainname"/httpdocs/tools/smarty/sysplugins/smarty_internal_template.php on line 678\n', referer: https://mywebsite/bytaldoc/index.php?controller=AdminOrders&id_order=31477&vieworder&token=xxxx

 

here the line 666 to 679

 

    /**
     * get Smarty property in template context
     *
     * @param string $property_name property name
     *
     * @throws SmartyException
     */
    public function __get($property_name)
    {
        switch ($property_name) {
            case 'source':
                if (strlen($this->template_resource) == 0) {
                    throw new SmartyException('Missing template name');
                }

 

 

how can i fix this problem please help me soon apossible

[musicmaster]

DId you try emptying your cache?

[taldoc]

yes emty all caches and browsercache

[musicmaster]

This is the backoffice. I would try to copy the admin, controllers and classes directories from a fresh PS installation of the same version.

[taldoc]

Super many Thanks the last Hint was correkt !!!