[Mean]

Your code's a mess.

pawn Код:

if (strcmp("/gotolp", cmdtext, true, 10) == 0) {
    if(IsPlayerAdmin(playerid)) { // Open bracket that you forgot.
        SendClientMessage(playerid,YELLOW, "(INFO) You have been teleported to Las Payasadas!");
        SetPlayerPos(playerid,-247.7184,2692.8208,62.6875);
        // The "return 1;" was needless since you are calling "return 1;" after the else statement, therefore you're calling the "return" function twice, causing the other return to be unreachable. Returning a true value in OnPlayerCommandText stands for a successfully executed command. Once is enough. 
    }
    else { // You should put an opening bracket here. 
        SendClientMessage(playerid,YELLOW, "(INFO) This command is for administrators only!");
    } // This is a closing bracket, not an opening one. 
    return 1;
}