It kicks me out for the reason of "flying isn't enabled on this server"

[Giga_Balls_Enjoyer]

I am playing 1.12.2 with spongeforge and were trying to use a mod called davincis vessels, which adds blimps, and when I sit in one and try to fly around with it the server kicks me and gives the message: "flying isn't enabled on this server" even though I have enabled it and restarted the server and tried multiple times.

I don't know what to do?

[rosabel]

Enable it in server.properties (or is it some yml folder?) and make sure it saves there.

1.12.2 with mods can be dodgy, so stuff like this is bound to happen.

[Giga_Balls_Enjoyer]

Thanks, I found the server.properties folder and flight was disabled in it, now it works!