My account cannot use the skill

I was trying to use skill by switching between the crossbow and the bow.

I don't know what happened, but now I can't use skills at all.
I tried everything but I can't use any skills on my account.

My stat is enough, I changed weapons, I changed my settings, I turned the game off and on, I deliberately killed my account.

Nothing works except standard arrow throwing.

https://streamable.com/5ulr7z

I'm assuming this is a skill that could be used by both a bow and x-bow? if that's the case than it's probably you don't meet the stat req. Items and gems all have req. red is str blue is int green is dex. just hover over them and it tells you. If you're meeting the req but cant use them it's most likely a skill that's only useable with a certain weapon type

No, it's all about the structure of the skill tab

A friend helped me solve the problem.

The two options for which weapon to use the skills on became unchecked and something like this must have happened.
I still don't fully understand why it happened

Here is the solution

I used a lower level skill and it was working.
With the skill window open, I expanded the skill details (right arrow)
I didn't close this place, I swapped the broken skill in my inventory with the existing solid skill
the skill tab on the right side was broken but now the weapon type is adjustable
from here I chose my weapon type that can be used and my problem is solved.

I may not have explained it clearly, but this part of the game really has a problem and if other people have this problem they will not find a solution.