JaariAtmc

Do you happen to be forcing ipv6 somehow?

What's the text that keeps repeating?

Minecraft accounts have a certain ID. This ID does not change past about 1.7.10, when namechanges were introduced. Before 1.7.10, namechanges weren't supported, but as long as they keep the same name, the server won't know any better than it being the same person.

Did you bother to read *Any* thread in this subforum? Nvm, I just saw you did.

Did you even bother to read these subforums?

Saw I missed this. "clicked extract as instructed by the Technic guide to creating a modpack" That's written nowhere, because it is wrong. You don't extract, you rename as-is.

It is needed.

I am not getting this message. Other than that you should change the ?dl=0 to ?dl=1.

Delete the DimensionalDoors folder from your server's world save. Restart the server.

Install and use this java. https://javadl.oracle.com/webapps/download/GetFile/1.8.0_251-b08/3d5a2bb8f8d4428bbe94aed7ec7ae784/unix-i586/jdk-8u251-macosx-x64.dmg

Looks like you aren't allocating enough memory/ you are allocating too much memory. How much RAM out of your total RAM are you allocating?

Please pastebin your technic log, or request help in the Technic discord.

Make sure you are actually using 8u251 (downloaded from link) and not 8u261 which causes your issue.

Use this java instead. https://javadl.oracle.com/webapps/download/GetFile/1.8.0_251-b08/3d5a2bb8f8d4428bbe94aed7ec7ae784/unix-i586/jdk-8u251-macosx-x64.dmg

What Forge version and universal or installer?

You have not provided any logs in your own thread.

Why did you include 1.12.2.json in your bin folder? What forge did you include? Universal or Installer?

Use this java instead. Do not use 8u261. https://javadl.oracle.com/webapps/download/AutoDL?BundleId=242044_3d5a2bb8f8d4428bbe94aed7ec7ae784

Install and use this java instead. Do not use Java 8u261. https://javadl.oracle.com/webapps/download/AutoDL?BundleId=242044_3d5a2bb8f8d4428bbe94aed7ec7ae784

Forge 2854 requires you to use the Forge Installer. Rename the Installer as is. Do NOT extract/install.

Please provide a screenshot of your launcher window.

Your CreativeCore is quite outdated, I suggest updating that. https://www.curseforge.com/minecraft/mc-mods/creativecore/files

^For anyone wondering.

You need to download the Offline Installer (64bit). The online installer always downloads and installs 32 bit java.