How can this be fixed?
Opencart 2.2.0.0
Thank you.SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
OK
<br />
<b>Fatal error</b>: Uncaught exception 'Exception' with message 'Error: DATA not accepted from server!' in /xxx/xxx/xxx/html/system/library/mail.php:404
Stack trace:
#0 /xxx/xxx/xxx/html/catalog/model/checkout/order.php(804): Mail->send()
#1 [internal function]: ModelCheckoutOrder->addOrderHistory('3511', '3', '', '1', '0')
#2 /xxx/xxx/xxx/html/system/storage/modification/system/engine/loader.php(150): call_user_func_array(Array, Array)
#3 [internal function]: {closure}(Array)
#4 /xxx/xxx/xxx/html/system/engine/proxy.php(13): call_user_func(Object(Closure), Array)
#5/xxx/xxx/xxx/html/catalog/controller/api/order.php(821): Proxy->__call('addOrderHistory', Array)
#6 /xxx/xxx/xxx/html/catalog/controller/api/order.php(821): Proxy->addOrderHistory('3511', '3', '', '1', '0')
#7 [i in <b>/xxx/xxx/xxx/html/system/library/mail.php</b> on line <b>404</b><br />