I'm trying to implement a 100% off coupon code with Charge, but every time I submit the form I get an error.
The error reads: Fatal error: Call to a member function addError() on a non-object in /system/expressionengine/third_party/charge/mod.charge.php on line 1387
Any clue how I could resolve this? Would the charge_pre_payment hook work? And if so, how/where would I implement that?
Thanks in advance, EE Harbor has been unresponsive to any of my report requests.