Valley of Rites

Hey all, I usually farm every day valley of rites (lvl 98 ini) in easy mode to craft t-stones. Today after a few hours farming my dmg decreased by 30% or more. Exactly with the same class and buffs I usually hit 72% of their hp with one hit, this afternoon from one run to another only 48%.
I restarted the client and still the same. My hits are lower dont know why. I asked a friend to try and he noticed the same. Could you please restart the map, or the ini to fix it? Thx

Now i hit what i should, thanks for the restart, it fixed it. Have a good day.