Amazon Marketplace module by Common Services - error being thrown due to incompatibility

[30knees]

According to the @Common-Services support, the error being thrown when I import orders from Amazon is due to tb incompatibility:

"Warning: Cannot use a scalar value as an array in /public_html/classes/Tools.php on line 4629"

What's your take on this?

[yaniv14]

Based on the line number, it is spreadAmount function. Which is identical to Prestashop, from what I see. So I am not sure what incompatibility they are talking about.

[30knees]

This is their reply after pointing out that the function is identical to PrestaShop:

"The message is not error but warning. I think you can ignore the message."

What does line 4620 do?