So, I have a new problem:
If I send arrays with the bigness of 13x13 from a client to the server, the array will arrive errorless, but if I send 4 arrays with 13x13 or an array with 5x13x13 at the same time from the server to all 2-4 clients, the clients won't become the array. The data in the arrays of the clients is the same how before.
Can be the problem triggered by the script, the connection or by another thing?