those are my settings:

but somehow there is no exp cost to teleport:

i'm not increative.

ps: it's a server made with fabric on my pc. thx.

It looks like you're teleporting to a global waystone (yellow name). The line [target_is_global] multiply_xp_cost(0) in the warp requirements makes global waystones free. Remove that line or change it to your liking, or use regular non-global waystones.

Additionally, Balm 21.4.29 fixed an issue with configs not being properly synced to clients, so make sure to update to that version as well.

thank you so much! that fixed the problem.