Problem/Bug NuVotifier error

Hey, I've been dealing with this issue for weeks now. I've made multiple posts on different forums and Discord servers and I can't seem to get it to work. I am using NuVotifier and whenever someone Votes on my server from Minecraft-server-list.com or some different voting site I get this error. It works perfectly fine on PlanetMinecraft and Minecraft-mp.com so my key is working.

Code:

[15:53:51] [Votifier NIO worker/ERROR]: [Votifier] Unable to process vote from /104.200.31.26:60054
com.vexsoftware.votifier.netty.handler.codec.CorruptedFrameException: Could not decrypt data (is your key correct?)
    at com.vexsoftware.votifier.net.protocol.VotifierProtocol1Decoder.decode(VotifierProtocol1Decoder.java:34) ~[nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:502) ~[nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:441) ~[nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:278) ~[nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.handler.codec.ByteToMessageDecoder.handlerRemoved(ByteToMessageDecoder.java:249) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:507) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:441) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:278) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:656) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:591) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:508) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:470) [nuvotifier-2.5.3.jar:?]
    at com.vexsoftware.votifier.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:909) [nuvotifier-2.5.3.jar:?]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_221]
Caused by: javax.crypto.BadPaddingException: Decryption error
    at sun.security.rsa.RSAPadding.unpadV15(Unknown Source) ~[?:1.8.0_221]
    at sun.security.rsa.RSAPadding.unpad(Unknown Source) ~[?:1.8.0_221]
    at com.sun.crypto.provider.RSACipher.doFinal(RSACipher.java:363) ~[sunjce_provider.jar:1.8.0_231]
    at com.sun.crypto.provider.RSACipher.engineDoFinal(RSACipher.java:389) ~[sunjce_provider.jar:1.8.0_231]
    at javax.crypto.Cipher.doFinal(Cipher.java:2164) ~[?:1.8.0_191]
    at com.vexsoftware.votifier.net.protocol.v1crypto.RSA.decrypt(RSA.java:58) ~[?:?]
    at com.vexsoftware.votifier.net.protocol.VotifierProtocol1Decoder.decode(VotifierProtocol1Decoder.java:32) ~[?:?]
    ... 28 more