Error in console

[13:12:59 WARN]: Exception encountered when loading plugin: TCPShield
net.tcpshield.tcpshield.exception.TCPShieldInitializationException: net.tcpshield.tcpshield.exception.TCPShieldIPListUpdaterException: java.io.IOException: Server returned HTTP response code: 403 for URL: https://tcpshield.com/v4/
        at net.tcpshield.tcpshield.HandshakePacketHandler.<init>(HandshakePacketHandler.java:27) ~[?:?]
        at net.tcpshield.tcpshield.bungee.BungeeHandshakePacketHandler.<init>(BungeeHandshakePacketHandler.java:22) ~[?:?]
        at net.tcpshield.tcpshield.bungee.TCPShieldBungee.onEnable(TCPShieldBungee.java:12) ~[?:?]
        at net.md_5.bungee.api.plugin.PluginManager.enablePlugins(PluginManager.java:300) ~[waterfall.jar:git:Waterfall-Bootstrap:1.16-R0.5-SNAPSHOT:7395ab3:403]
        at net.md_5.bungee.BungeeCord.start(BungeeCord.java:289) ~[waterfall.jar:git:Waterfall-Bootstrap:1.16-R0.5-SNAPSHOT:7395ab3:403]
        at net.md_5.bungee.BungeeCordLauncher.main(BungeeCordLauncher.java:62) ~[waterfall.jar:git:Waterfall-Bootstrap:1.16-R0.5-SNAPSHOT:7395ab3:403]
        at net.md_5.bungee.Bootstrap.main(Bootstrap.java:15) ~[waterfall.jar:git:Waterfall-Bootstrap:1.16-R0.5-SNAPSHOT:7395ab3:403]
Caused by: net.tcpshield.tcpshield.exception.TCPShieldIPListUpdaterException: java.io.IOException: Server returned HTTP response code: 403 for URL: https://tcpshield.com/v4/
        at net.tcpshield.tcpshield.validation.IPListUpdater.update(IPListUpdater.java:42) ~[?:?]        at net.tcpshield.tcpshield.validation.IPValidation.checkIPList(IPValidation.java:66) ~[?:?]
        at net.tcpshield.tcpshield.validation.IPValidation.<init>(IPValidation.java:29) ~[?:?]
        at net.tcpshield.tcpshield.HandshakePacketHandler.<init>(HandshakePacketHandler.java:24) ~[?:?]
        ... 6 more
Caused by: java.io.IOException: Server returned HTTP response code: 403 for URL: https://tcpshield.com/v4/
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) ~[?:1.8.0_281]
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.8.0_281]
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.8.0_281]
        at net.tcpshield.tcpshield.validation.IPListUpdater.getIPList(IPListUpdater.java:53) ~[?:?]
        at net.tcpshield.tcpshield.validation.IPListUpdater.update(IPListUpdater.java:27) ~[?:?]        at net.tcpshield.tcpshield.validation.IPValidation.checkIPList(IPValidation.java:66) ~[?:?]
        at net.tcpshield.tcpshield.validation.IPValidation.<init>(IPValidation.java:29) ~[?:?]
        at net.tcpshield.tcpshield.HandshakePacketHandler.<init>(HandshakePacketHandler.java:24) ~[?:?]
        ... 6 more