Sector: Sluis
System: Sluis (118, -375)
Planet: Sluis Van (10, 2)
Surface Position: (4, 0)
Ground Position: (0, 21)

those are my current coordinates....i was innactive for a long time, now I'm getting back into it. I tried walking the terrain, but i can only go back and forth between a few spaces even though the terrain is mostly grass without any restrictions...i don't know how to get out of this place, please help me...

If you join a faction they will be able to assign you a ship and give you a ride. There isn't much to do on the ground anyhow.

Indeed, Join a faction. I would say keep walking though, what little experience points you gain from it are worth it in the long run. I made my first level up walking back and forth across a city.