When I try to award RP points in a vote it doesn't work.

Error:
12/17/2023 20:28:05 | [EasyVote] System.NullReferenceException: Object reference not set to an instance of an object
at Oxide.Plugins.EasyVote.GaveRewards (BasePlayer player, System.Collections.Generic.List`1[T] rewardValue) [0x00120] in <39e6981e317141e08efe1eea0651135c>:0

Confiq:
"Rewards": {
"@": [
"rp: 2"
]