Why I can't gain experience after Lv 13?

I'm using enchantress and reach lv13, after that I can't gain any experience even I killed much ppl. Do any one know what happen?

I haven't bought any new map, will It affect?
thank you :-)

You need to purchase a new map, the mobs' level on the free map are too low, they don't give you any xp anymore =P

edit: dont worry it's worth it =D

Yes, get the expansions. They are worth it. =D

Just to answer again, that means I have to purchse the new map in order to gain Xp for Lv 13?

Each level pack you purchase increases your level cap by 5. To put it plainly; Yes. You need to purchase the new map in order to gain xp for lev 13.

To additionally clarify, not only do you need to purchase the new maps, you need to play on those new maps to gain XP. The old maps will only give you loot & gold.

Buvet &B Setec, thks fr yr advice .......

no problem. I'm glad to help.