The strategy put buystop pending order 5 pips above the high of every bull candle and the opposite for short,
the default stoploss is 10 pips and the limit is 5 pips, the problem is that when a trade open the stoploss calculated 10 pips below the closing price of the previous candle instead of 10 pips below the entry price and same for limit order.

Hello.

You'v mixed several stop orders.
Your strategy places Stop Pending orders with Stop Loss orders on them.
So Stop Pending orders are above or below highs and lows on pips.
And Stop Loss orders are 10 pips from Stop Pending orders.