On dragons I have gotten to level 10 combat and started the jungle quests but I’ve come back onto the and I am level 9 but I cannot redo the quest to level back up to 10 as it is in my completed quests and my jungle quest is still in progress but I cannot get through portal or speak to Alexander to level up again because Gabriel is gone now aswell
Environment
Dragons - combat temple / jungle portal
This doesn’t seem like vanilla Minecraft, are you using mods? (Modified versions are unsupported here)