Anything typed in localadmin does nothing

This is usually a linux problem iirc, it can be seen in this image: 
The fix is shrimple, if you go to the localadmin config which is stored at:
.config/SCP Secret Laboratory/config/config_localadmin_global.txt or in the servers port config folder change the la_no_set_cursor config to true.
Once that is done restart localadmin and all should be good.