First make your way up to the library.

Choose the Elysium Days instance.

Visit Instance Settings.

And change maximum memory allocation to minimum 5120 of ram, but 6144 is strongly recommended.

Visit "Edit" in the side bar while Elysium Days instance selected.

Visit Settings tab.

And change maximum memory allocation to minimum 5120 MiB of ram, but 6144 MiB is suggested.

First click the settings button on the side bar, and visit Java/Minecraft tab.

And change maximum memory allocation to minimum 5120 of ram, but 6144 is suggested.

This is for general RAM allocation, if u individually wanna allocate RAM to Elysium Days, go to Instances in the side menu, click Settings on the Elysium Days instance and allocate more RAM here.

Locate to Settings Wheel, and enter the Java tab. And make Java Memory to minimum 5120 MB of ram, but 6144 MB is suggested.

This is for general RAM allocation, if u individually wanna allocate RAM to Elysium Days, go to Instances in the side menu, click Settings on the Elysium Days instance and allocate more RAM here.