To write code, please use the <> “insert PRT code” button, to make code easier to read.

You should post the whole strategy to test it and try to spot any issue.

At first glance I warn you that

Set stop loss 25

will never be executed (at least on forex pairs), you should either write:

Set stop loss 0.0025  //in Forex pairs, not Dax or oher indeces, it must be a difference in price
//    or
Set stop Ploss 25     //this is 25 pips

sorry, mistake. I meant this one:

startBreakeven = 5 //how much pips/points in gain to activate the breakeven function?
PointsToKeep = 3 //how much pips/points to keep in profit above of below our entry price when the breakeven is activated (beware of spread)

//reset the breakevenLevel when no trade are on market
IF NOT ONMARKET THEN
breakevenLevel=0
ENDIF

// --- BUY SIDE ---
//test if the price have moved favourably of "startBreakeven" points already
IF LONGONMARKET AND close-tradeprice(1)>=startBreakeven*pipsize THEN
//calculate the breakevenLevel
breakevenLevel = tradeprice(1)+PointsToKeep*pipsize
ENDIF

//place the new stop orders on market at breakevenLevel
IF breakevenLevel>0 THEN
SELL AT breakevenLevel STOP
ENDIF
IF SHORTONMARKET AND tradeprice(1)-close>startBreakeven*pipsize THEN
//calculate the breakevenLevel
breakevenLevel = tradeprice(1)-PointsToKeep*pipsize
ENDIF
//place the new stop orders on market at breakevenLevel
IF breakevenLevel>0 THEN
EXITSHORT AT breakevenLevel STOP
ENDIF
// --- end of BUY SIDE ---