500 Internal Server on PayPal checkout

[RobinParker]

I'm trying to get my Prestashop 1.4 configured. I have tried to configure the Paypal V2.3 module with Paypal API details from my PayPal account. Everything looks fine.

But when I try and test a checkout, I get as far as the final step of Prestashop checkout process - but when I click on the PayPal button I get a 500 Internal Server error displayed. This tells me that "The server encountered an internal error or misconfiguration and was unable to complete your request".

I have no idea what I have not configured correctly. Anyone offer any suggestions as to what I have done wrong or how to help me find the problem?

Many thanks,

Robin

[tomerg3]

Check out http://www.presto-changeo.com/en/content/13-fixing-error-500

[RobinParker]

Brilliant. Many thanks for that prompt and helpful reply. I have altered the site settings back to 755 as you suggest and I now successfully make it to Paypal login (I am now getting a paypal error about countrys of residence - but that's another story :-)).

As a bonus, I am sure that my shop will be all the more secure for this also!

Robin

[tomerg3]

Brilliant. Many thanks for that prompt and helpful reply. I have altered the site settings back to 755 as you suggest and I now successfully make it to Paypal login (I am now getting a paypal error about countrys of residence - but that's another story :-)).

As a bonus, I am sure that my shop will be all the more secure for this also!

Robin

I'm glad it's working for you (at least no error 500).

Security should not be a bonus, it should be one of the top priorities.

You may want to read http://www.presto-changeo.com/en/content/14-prestashop-installation-tips as well, which has suggestions for a proper server setup.