si grazie ho cambiato al 5.6.24 ma nulla da fare: Internal Server ErrorThe server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at postmaster@dominio to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
il log del server sono due:
[Tue Sep 20 19:00:06 2016] [error] [client 2.235.10.123:54338] - dominio - End of script output before headers: payment.php, referer http://dominio/index.php?controller=order [Tue Sep 20 19:00:06 2016] [error] [client 2.235.10.123:54338] - dominio - AH01215: suexec policy violation: see suexec log for more details: /web/htdocs/domnio/home/modules/paypal/express_checkout/payment.php, referer http://dominio/index.php?controller=order
non sò, se avete qualche dritta, grazie anticipatamente