[Skimmer]

Just add this below IsPlayerNPC.

pawn Код:

if(!IsPlayerConnected(giveplayerid)) return SendClientMessage(playerid, COLOR_RED, "Player is not connected.");
if(PlayerInfo[giveplayerid][pLogged] == 0) return SendClientMessage(playerid, COLOR_RED, "Player is not logged in.");

Also you don't need to create extra timer to reset the JustReported variable.

Simple create a variable, which saves the time of using this command.

Example

pawn Код:

JustReported[playerid] = gettime();

pawn Код:

if((gettime() - JustReported[playerid]) < 20) return SendClientMessage(playerid, COLOR_GREY, "Wait 20 seconds after sending a next /report ! ");