I just tested the bot myself for a while at the mor ul rek gem stall and it seems to be working on my end... I'm not sure why it would get stuck interacting with the stall or scoreboard. Actually especially the scoreboard should be impossible, as I also added extra failsafe code lately.
We might have discussed this already, but if you have any runelite plugins enabled (especially entity swapper etc) please try with them off.
If it continues to not work for you, I'm sorry for hijacking your thread and I understand if you'd prefer someone purpose make a bot for it, as I'm not sure what else would cause this.