[DarkSkull]

PHP код:

if(sscanf(params, "s[128]i", params, idx, text)) return SendClientMessage(playerid, error, "Usage: /dedit interior [doorid]"); 


The sscanf error comes due to this line. You have specified two specifiers, but three parameters.

Change it to this:
this is the sscanf in the interior part of the code.
EDIT: UPDATED THE CODE TO SUPPORT 2 Parameters.

PHP код:

if(sscanf(params, "s[128]i", params, idx)) return SendClientMessage(playerid, error, "Usage: /dedit interior [doorid]"); 


As for the 3D label, I don't see you updating the 3d text label in the interior part of the code.