Hi @SmartPhoneLover,
As I indicate to you in the Telegram group https://t.me/UnRAID_ES of the Spanish-speaking UnRAID community, the first thing we should do is have the minimum requirements recommended by UnRAID for the start-up of our S.O. and from here observe how said new installation behaves.
It is logical that you refer to the minimums recommended by UnRAID since from that basis we can rule out possible subsequent error messages. Be that as it may, 1Gb of RAM will always be a very fair size for other situations where you want to perform other tasks in UnRAID.
Kind regards