How fix "Not enough place in inventory"

[.Avenue™ 739]

Hey, how I can fix this Failure?

as example:

I've equipped a sword+9, I do right-click on my two-hand-sword+9 in my inventory & then I got following error-message:

"Not enough place in inventory"

[ScreamMyName 96]

you probably fucked up when adding more inventory slots.

[.Avenue™ 739]

@ScreamMyName

So, I declare it a closer look: I have three slots (irregularly distributed). However, these are not on each other! However, if I have three slots free, which are directly above each other, it works. There were a fix, as far as I know. Unfortunately I do not find this fix.

 

Doesn't work:

+

 

Works:

[Shisui 486]