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