[gtakillerIV]

PHP Code:

if((level < 1) || (level > 100000)) return SendClientMessage(playerid,0xFF0000AA,"The MAXIMUM Cash Amount is 1$ - 500.000$); 


Should be:

PHP Code:

if((inputtext < 1) || (inputtext > 100000)) return SendClientMessage(playerid,0xFF0000AA,"The MAXIMUM Cash Amount is 1$ - 500.000$); 


Note inputtext is defined under:

PHP Code:

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[]) 


Inputtext means what the player typed in the dialog. So the text that the player typed in is called inputtext.