"Error: Parameter "to" is corrupted"

[codochi]

Cart cannot be loaded or an order has already been placed using this cart

Frontcontroller::init - Cart cannot be loaded or an order has already been placed using this cart

Error: Parameter "to" is corrupted

Hello~

 

When I click "Add a product"

At address bar appears: #new_product#new_product#new_product#new_product#new_product#new_product#new_product#new_product

After I click "Add" this Alert appears:

Impossible to add the product to the cart.

textStatus: 'parsererror'
errorThrown: 'SyntaxError: Unexpected token E in JSON at position 0'
responseText:
Error: Parameter "to" is corrupted

I active PS DEV MODE but can not find anything.

 

[codochi]

At 1.6.1.4 version has no problem.

Please help