Ancora problemi sul ritorno da paypal

[Zampalesta]

Scusatemi ma no so che pesci pigliare.
Quando cerco di ritornare dal paypal di test ottengo questi errori:

Warning: reset() [function.reset]: Passed variable is not an array or object in C:\Progetti\prove\prove_php\oscommerce\catalog\includes\classes\navigation_history.php on line 130

Warning: Variable passed to each() is not an array or object in C:\Progetti\prove\prove_php\oscommerce\catalog\includes\classes\navigation_history.php on line 131

Warning: reset() [function.reset]: Passed variable is not an array or object in C:\Progetti\prove\prove_php\oscommerce\catalog\includes\classes\navigation_history.php on line 130

Warning: Variable passed to each() is not an array or object in C:\Progetti\prove\prove_php\oscommerce\catalog\includes\classes\navigation_history.php on line 131

Warning: Cannot modify header information - headers already sent by (output started at C:\Progetti\prove\prove_php\oscommerce\catalog\includes\classes\navigation_history.php:130) in C:\Progetti\prove\prove_php\oscommerce\catalog\includes\functions\general.php on line 33

Qualcuno a qualche idea?

Grazie

Zampa