Inside pterodactyl, it seems it cannot resolve downloads

[Pterodactyl Daemon]: Finished pulling Docker container image
container@pterodactyl~ java -version
openjdk version "21.0.7" 2025-04-15 LTS
OpenJDK Runtime Environment Temurin-21.0.7+6 (build 21.0.7+6-LTS)
OpenJDK 64-Bit Server VM Temurin-21.0.7+6 (build 21.0.7+6-LTS, mixed mode, sharing)
container@pterodactyl~ java -Xms128M -XX:MaxRAMPercentage=95.0 -Dterminal.jline=false -Dterminal.ansi=true -jar server.jar
Downloading mojang_1.21.5.jar
Failed to download mojang_1.21.5.jar
java.net.UnknownHostException: piston-data.mojang.com
        at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:567)
        at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327)
        at java.base/java.net.Socket.connect(Socket.java:751)
        at java.base/sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:304)
        at java.base/sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:181)
        at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:183)
        at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:531)
        at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:636)
        at java.base/sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
        at java.base/sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:377)
        at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:193)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1252)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1138)
        at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:179)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1690)
        at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1614)
        at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:223)
        at java.base/java.net.URL.openStream(URL.java:1325)
        at io.papermc.paperclip.DownloadContext.download(DownloadContext.java:55)
        at io.papermc.paperclip.Paperclip.setupClasspath(Paperclip.java:63)
        at io.papermc.paperclip.Paperclip.main(Paperclip.java:28)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at io.papermc.paperclip.Main.main(Main.java:26)