Minimserver keeps crashing on Synology

[pvanosta]

I am trying to set up an Auralic Aries Mini on my brother's network. Everything is wired ethernet with Gigabit switches. The Synology is a 4-bay DS412+ with a total single volume of 8TB in hybrid raid. The Music folder sits at the root of the NAS share. The library is large (150,000 tracks or so). DSM is updated to the latest version. I installed Java and Minimserver. Now it crashes within a few minutes with the following error:

Unexpected exception java.lang.OutOfMemoryError: Java heap space

Any ideas what is going on here? Thx for any feedback.