The deprecated function call should be replaced with the suggested one.
2019-03-05 18:47:45: WARNING[Server]: Call to deprecated function 'getpos', please use 'get_pos' at /home/dirk/.minetest/mods/3d_armor/3d_armor/init.lua:163
2019-03-05 18:47:45: WARNING[Server]: Call to deprecated function 'getpos', please use 'get_pos' at /home/dirk/.minetest/mods/3d_armor/3d_armor/init.lua:430
The deprecated function call should be replaced with the suggested one.