error in payment method

[amirsardari]

when I want to make a new payment method in eshop component,see this error:

Fatal error: Call to undefined method SimpleXMLElement::getAttribute() in /var/www/vhosts/fazlinstitute.com/httpdocs/administrator/components/com_eshop/includes/eshop.xml.php on line 252

How can I solve it?

[CREATIVE Options]

"want to make" what do you mean ?

Which payment method you try to publish ?

Have you check if the reported file exist ? Check it with FTP.

[amirsardari]

when I want to build a new payment account, for example order account or account bank... ,see this error.
after fill the form, when I want to save the new payment account,I coud not save it and see this error.

[CREATIVE Options]

Have you check if the reported file exist ? Check it with FTP.

[CREATIVE Options]

How many languages you have publish on your website ?

Are the main language RTL ?

You write with RTL language ?

Have you setup proper the eshop from the Configuration for the RTL language ?

[amirsardari]

one language is publish on my site,when my RTL language is english,there is no error,but when it is persian,I see this erorr.why?
 

[CREATIVE Options]

You have report it to IOS Company.

[datahell]

Most probably the Persian language files misses some translations.
Compare the persian language file to the english ones to find out what is wrong.