What's the point of buying a raidable base?
Can I get NPCS not to attack me,if i buy a raid? I can't find the configuration to adjust

Npcs will always attack. They're not personal guards. You buy raids so you don't have to find a raid, and then lock it to you.

Okay, thanks, but I have a new problem. That is why the raiding base disappeared after a while.

Disappeared after a while is too vague