Problem in integration of cyber source payment gateway

[ParamAyurveda]

Whenever, I tried to install cyber sorce global payment extension on my website. My payment method page is gone blank.

magento admin panel ---> Stores --> Configuration -->Sales-->Payment Methods

I tried all possible way to install it, but it always give me same error.
Below, I mentioned link of extension which i tried to install

https://marketplace.magento.com/cybersource-global-payment-management.html

Please help me to install this extension on my website or if any alternate options is available to integrate cyber source payment gateway, then please suggest me.

My website is running on magento2.2 and i am using PHP 7.0.2

[dmoisej]

Hi there, how are you?

What is an error? Please check following files (if they exist):

/var/log/debug.log

/var/log/system.log

/var/log/exception.log

If it is development environment uncomment in /app/bootstrap.php the line number 11. 

ini_set('display_errors', 1);

 Then refresh payment methods page and look if you have some errors. If I will get some my time I will try to intall extension and to debug it.

[ParamAyurveda]

Thank you for reply.

There are lots of error in all the three files

Error in /var/log/debug.log 

main.DEBUG: cache_invalidate: {"method":"GET","url":"http://herpescure.net/ayurvedic-medicines/shodhit-dravya","invalidateInfo":{"tags":["interception","..."}} []

main.DEBUG: cache_invalidate: {"method":"GET","url":"http:/","invalidateInfo":{"tags":["interception","CONFIG"],"mode":"matchingTag"}} []

main.DEBUG: cache_invalidate: {"method":"POST","url":"https://herpescure.net/setup/index.php/session/prolong","invalidateInfo":{"tags":["interception","CO..."}} []

Error in /var/log/exception.log

main.CRITICAL: Dotmailer connector API endpoint cannot be empty. {"exception":"[object] (Magento\\Framework\\Exception\\LocalizedException(code: 0): Dotmailer connector API endpoint cannot be empty. at /home/parambsk/public_html/herpescure.net/vendor/dotmailer/dotmailer-magento2-extension/Model/Apiconnector/Client.php:118)"} 

Error in /var/log/system.log

main.ERROR: error in address verification service:
Security Data : illegal null input

main.ERROR: error in reply tax service:
Security Data : illegal null input

main.CRITICAL: Email template 'payment_other_cybersource_section_cybersource_general_dm_fail_template' is not defined. [] []

[ParamAyurveda]

I am also tried to uncomment below given line

ini_set('display_errors', 1);

 But there was no change in payment method page.

Please help me to solve this issues, I don't have much more knowledge about magento 2.2

[dmoisej]

@ParamAyurveda I will look at it soon

[ArabianPorter]

If you still facing this proplem i managed to solve it by editing this file 

vendor/cybersource/module-core/etc/email_templates.xml

and this code before </config>

<template id="payment_other_cybersource_section_cybersource_general_dm_fail_template" label="Cybersource DM fail email" file="dm_fail.html" type="html" module="CyberSource_Core" area="frontend"/>