[GoldNux]

SOLVED: I had to delete csstats.dat

I'm trying to reset all ranks and /top15 but it doesent work.

I have tried the following:

rcon amx csstats_reset 1
amx_rcon csstats_reset 1
rcon csstats_reset 1

restart the server
restart the game

[WhiteFang1319]

If I remember correctly you need to do this after map change:
rcon csstats_reset 0

Simplest way is to delete the csststs.dat file in amxmodx/data/