I dont really know how to fix this, i have launched before this but now i changed the mods and plugins and this is now working, maybe is it due to mods and plugins? (Mods probably not, because i removed all mods that not worked.)
OpenJDK Runtime Environment (build 1.8.0_282-b08)
OpenJDK 64-Bit Server VM (build 25.282-b08, mixed mode)
:/home/container$ java -Xms128M -Xmx2048M -Dterminal.jline=false -Dterminal.ansi=true -jar server.jar
Starting Magma
Checking for new version...
java.io.IOException: Server returned HTTP response code: 502 for URL: https://ci.hexeption.dev/job/Magma%20Foundation/job/Magma/job/master/lastSuccessfulBuild/api/json
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1900)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:268)
at java.net.URL.openStream(URL.java:1068)
at org.magmafoundation.magma.downloads.MagmaUpdater.versionChecker(MagmaUpdater.java:52)
at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:62)```
update (i disabled auto-update but its doing nothing.)