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[20:10:06] [Render thread/WARN]: Unknown custom packed identifier: minecraft:register
[20:10:06] [Render thread/INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD'
[20:10:06] [Render thread/WARN]: Unknown custom packed identifier: minecraft:register
[20:10:06] [Render thread/INFO]: Loaded 3 advancements
[20:10:07] [Downloader 0/INFO]: [STDERR]: java.io.IOException: Server returned HTTP response code: 503 for URL: https://download.minenations.net/MineNationsPack25842.zip#hash=2bfe15d641396235f34de8301a9cbf5c2c0b5b12
[20:10:07] [Downloader 0/INFO]: [STDERR]: 	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1997)
[20:10:07] [Downloader 0/INFO]: [STDERR]: 	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1589)
[20:10:07] [Downloader 0/INFO]: [STDERR]: 	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:224)
[20:10:07] [Downloader 0/INFO]: [STDERR]: 	at aje.a(SourceFile:140)
[20:10:07] [Downloader 0/INFO]: [STDERR]: 	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
[20:10:07] [Downloader 0/INFO]: [STDERR]: 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
[20:10:07] [Downloader 0/INFO]: [STDERR]: 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
[20:10:07] [Downloader 0/INFO]: [STDERR]: 	at java.base/java.lang.Thread.run(Thread.java:833)
[20:10:07] [Downloader 0/ERROR]: <!DOCTYPE HTML>