"Failed to use the skill due to an unknown reason."

I can't find a way to get rid of this

I think it started after I used one of those 20% boss dmg or def ignore potions at gollux. It was either then or when I went to Commerci trade union. I tried unequipping my decent skills, pets and pet equips but it didnt work. I don't have auto buff gem. I have restarted maple and my computer twice.

Please help if you have other possible solutions or any info about this glitch.


[edit]

Thanks CakesXD I will try that later on tonight and edit my post whether or not it works.