got error while card processing

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I am using skybluesofa_quickbooks_payments for the quickbook payment. But I get error while processing. Any help will be appreciate.
The error is as follows:
"Warning: get_class() expects parameter 1 to be object, boolean given in /home/brokersalliancef/public_html/packages/skybluesofa_quickbooks_payments/libraries/3rdparty/XML2Array.php on line 52"

 
MrKDilkington replied on at Permalink Reply
MrKDilkington
Hi bijayrukin,

I recommend contacting the add-on developer.
https://www.concrete5.org/marketplace/addons/quickbooks-payments-eco...