Not working with XF 1.5.3

RPS is no longer working properly when playing against members.
Cause: This change

https://xenforo.com/community/threa...zation-compatibility-changes-in-1-5-3.109056/

XenForo_Exception: Serialized value contains an object and this is now allowed

array(3) {
["url"] => string(67) "http://xxx/rock-paper-scissors/play-challenge"
["_GET"] => array(0) {
}
["_POST"] => array(4) {
["choice"] => string(4) "rock"
["challenge_id"] => string(1) "2"
["_xfToken"] => string(8) "********"
["_xfConfirm"] => string(1) "1"
}
}


We need a fix ASAP.


Thanks,

BR

-Thoddy398