Why Can't I use the Leap Slam skill?

I don't know why, but my leap slam is "inactive", although i'm supposed to be able to use it. You can see the inventory in my profile.

Can see some aspects of your profile, but not the characters, that appears to be private currently. Do you have enough mana, attributes and correct weapon type to use it? What other skill gems and supports is it linked to?

Sorry, guys, I thought I made everything public. Anyway, this was a hardcore characte,r and I died, so I just deleted it. thought it would throw me into the regular mercenary league, but it threw me into standard, unlike in PoE 2.

So, I had to start over. Will come back if I have the same problem with the new character.

My guess was that both Leap Slam was on one weapon and Rolling Magma on another (off-hand). And I think I was supposed only have leap slam on a weapon. If I unequipped the weapon with the Rolling Magma, then the Leap Slam would work

Hmm, shouldn't really be the case. Leap slam will not work with claw or dagger, so if u were dual wield one of them it would prevent it. Having rolling magma and leap slam should be fine in any slot, so long as it is not in your secondary weapons when trying to use. Weapon swap does not work the same as in POE2, you need to do it manually.

Anyway profile is viewable now, so if you have any further questions people will be happy to help, GL.