BUY AND SELL AT THE SAME PRICE SCRIPT

I would like to find a script that opens a BUY and a Sell at the same price.

I found this but it doesn't work.

One of the master programmers could check this script to see if it can be repaired.

I just need to open a BUY and a SELL at exactly the same price, without stop loss or take profit. Only Buy and Sell at the same price.