Error JUser: _load and error item car

I'm working on this template, not to Shopping Cart but institutionally.
I have a problem.
I don't know why a message appears at the top is displayed when viewing k2 into categories or items.
"JUser: _load: Could not load the user with 'ID' 389 '

and secondly, on the part of the login (item car) it appears try to fix it but did not know where. This appears on all pages.

{"response": {"134": "\ t \ t \ t \ t \ tDo items in cart \ t \ t \ t \ n \ t \ t \ t
\ n \ t \ t \ t \ t \ t \ t \ n \ t \ t \ TView Cart \ t \ t \ t <\ / a> \ n \ t \ t \ t \ t \ t \ t <\ / div> "," 136 ":" \ t \ t \ t \ t \ tDo items in cart \ t \ t \ t \ n \ t \ t \ t
\ n \ t \ t \ t \ t \ t \ t \ n \ t \ t \ TView Cart \ t \ t \ t <\ / a> \ n \ t \ t \ t \ t \ t \ t <\ / div> "}}

Please could help me to be

In this link you can see what I mentioned: I http://malec.kevaran.com/index.php/prod ... s/tornillo

Hi

I do not know what the second problem is. This looks like some not working plugin or a validation error. Tell me the url to the page I can see this error.

For the "JUser: _load: Could not load the user with 'ID' 389 '" this means that a product or article war created by a user who was deleted, so when we try to show this product/article error displays. Solution is to change author for this element to an existing one.

Ok thank you....

one more thing ...
how I can disable "My cart" on the top right.
It is not module and is not menu.
where I can do?

Hi

Please unpublish module in module position "cart", this will remove the button to open cart module in popup.

GREAT! thanks

Hi

No problem. Happy I could help