Assistance Needed for "POSITION_LOCKED" Error on BTCUSD Position

Dear cTrader Support Team,

I am writing to seek assistance regarding an issue I encountered while attempting to close a position on my demo account. I received the following error message:

“YOUR REQUEST TO CLOSE POSITION 40.00 LOTS OF BTCUSD FAILED WITH ERROR 'POSITION_LOCKED'”

I would appreciate your guidance on why this error occurred and what steps I should take to resolve it. If there are any specific rules, restrictions, or additional information required on my end, please let me know.