[Konstantinos]

I didn't mean in the command's parameters. Change that back to:

pawn Код:

CMD:shop(playerid, params[])

I meant that you forgot the 2 last parameters IN ShowPlayerDialog function.

For example (from wiki), you used:

pawn Код:

ShowPlayerDialog(playerid, DIALOG_WEAPONS, DIALOG_STYLE_LIST, "Weapons", "AK47\nM4\nSniper Rifle");

instead of:

pawn Код:

ShowPlayerDialog(playerid, DIALOG_WEAPONS, DIALOG_STYLE_LIST, "Weapons", "AK47\nM4\nSniper Rifle", "Option 1", "Option 2");

which is obvious that it's lacking button1 and button2.