Error: You already have the maximum quantity available for this product after moving" a PS 1.4.7.0

[Alldo Group]

Dear Forum!

 

We are trying to move a PS 1.4.7.0 to a new server.

 

Now we getting a "You already have the maximum quantity available for this product." error, when trying to add a product to the cart. The problem exists on all products. The problem persists when we upgrade to 1.4.11 on this new server.

 

php -v
PHP 5.5.9 (cli) (built: Mar  5 2014 05:15:14)
Copyright © 1997-2014 The PHP Group
Zend Engine v2.5.0, Copyright © 1998-2014 Zend Technologies with Zend OPcache v7.0.3
Copyright © 1999-2014, by Zend Technologies.

 

mysql -v
Server version: 5.6.16 Source distribution.

 

uname -a
FreeBSD server 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan 16 22:34:59 UTC 2014.

 

We are unsure what's causing this error message and problem. Maybe Prestashop is incompatible with either PHP 5.5 or MySQL 5.6. When we enable error reporting, it doesn't show anything.

 

But how can we test this?

Edited March 6, 2014 by Alldo Group (see edit history)