Trial of sekhemas bug

i encountered a bug while playing.i finished the trial of sekhemas and in the final room before i choose my ascendacy and looted chests ,i portaled out to sell my loot and now my portal doesnt work to return ,i then went to try go in from the main entrance its reset and ive no way to redo it,could you please help fix this issue as it took my quite a few trys to get through the whole trial.i dont have the item to restart the trial again also.