i need help with payment methods please

[Javorito]

hellow im new in abantecart script (im not goo that all in english) (but i eant to try) i change the lengauge of the script to spanish, but i dont know if that affecta, i can´t add more payment methods like paypal, even when i desintall the default payment don´t work :C im worried

[eCommerce Core]

Spanish language is included in default AbanteCart.
You can find it in extensions -> languages section
Paypal is located in extensions -> payment section

Check manual for more information:
http://www.abantecart.com/ecommerce-documentation/admin-user-manual

[Javorito]

yeah i know that but when i install the paypal method its all ok but when i want to checkout (by testing) it doesnt appear  i dont kno wwhy

[abantecart]

-Check min/max conditions for payment.
-See if payment is set for all locations.
-Make sure you do not restrict payment based on shipping selection 

-Check error log.

-Last resort, try to clear cache.

[Advisor]

Empty the cache, works wonders most of the time.

[Javorito]

thx really im gona try

[Javorito]

ok i already do all and i have it right now but when i do "comfirm" make me an error and in log sais

2015-05-18 22:45:30 - App Warning: AbanteCart core v.1.2.1 PayPal Express Checkout Error: Security header is not valid. Test mode = 1. in /home/tipsayco/public_html/extensions/default_pp_express/storefront/controller/responses/extension/default_pp_express.php on line 264


what can i do?

[Basara]

ok i already do all and i have it right now but when i do "comfirm" make me an error and in log sais

2015-05-18 22:45:30 - App Warning: AbanteCart core v.1.2.1 PayPal Express Checkout Error: Security header is not valid. Test mode = 1. in /home/tipsayco/public_html/extensions/default_pp_express/storefront/controller/responses/extension/default_pp_express.php on line 264


what can i do?

Do you modify core files? Also make sure you configured SSL correctly