Mistakes new server owners make
Most new servers do not fail because the idea is bad. They fail because launch is messy.
Doing everything at once
Too many plugins and game modes at launch creates bugs and a confusing first session. Start narrow. Add later.
No clear identity
Survival plus minigames plus economy plus RPG with no focus is hard to explain and hard to stay for.
Ignoring how it feels to play
Players leave when spawn is confusing, rules are hidden, and nobody explains the first ten minutes.
Expecting instant population
Communities take weeks. A quiet first weekend is normal. Inconsistent wipes and rule changes are what kill trust.
This is editorial advice, not a hosting sales page.