fix(server): nil plate in entity mismatch

See #1856.

Author: thelindat

modules/shops/server.lua

@@ -91,7 +91,6 @@ local function createShop(shopType, id)
         coords = store
     end
 
-	---@type OxShop
 	shop[id] = {
 		label = shop.name,
 		id = shopType..' '..id,

server.lua

@@ -161,7 +161,9 @@ local function openInventory(source, invType, data, ignoreSecurityChecks)
                 if right and data.netid ~= right.netid then
                     local invEntity = NetworkGetEntityFromNetworkId(right.netid)
 
-                    if DoesEntityExist(invEntity) or plate and not string.match(GetVehicleNumberPlateText(invEntity), plate) then return end
+                    if invEntity > 0 and DoesEntityExist(invEntity) or plate and not string.match(GetVehicleNumberPlateText(invEntity) or '', plate) then
+                        return
+                    end
 
                     Inventory.Remove(right)
                     right = Inventory(data)