It seems likely that you missed one or more quests from the NPCs in the Enocia Base. Try talking to the vendors. Some of the quests from them, you get from them sending you to each other, and not automatically. You certainly should not run out of quests this early.
I believe Level 10 is required for Derelict Tunnel Lv 1. When you are Level 9, and if you run out of quests before the Dybbuk, if you need more EXP to take it, you can grind the Special Forces Arkana for a bit because they give you EXP. But I would recommend taking on the Dybbuks first if you can, although they can be hard the first time, unless you can heal or have good resistance buffs.
Levels 6 through 8 seem to occur through Enocia Base and the Communication Tower. You have to use the Short-Range Portal to get the credit for the mission to travel there.