Good afternoon, I'm having a problem with the mod Sophisticated Backpacks, every time I try to open the backpack the game crashes and an error appears, when the backpack is empty an error appears that I forgot to take a screenshot of, I just wrote down what appeared that is (Internal Exception: java.lang.IndexOutOfBoundsException: readerIndex(5) + length(4) exceeds writer Index(5) PooledUnsafeDirectByteBuf(ridx: 5, widx: 5, cap: 5) ), when there is an item inside, the error appears in the attached image, I wanted to know if anyone could help me, I have several other MODs together, I will leave a print of all of them too.

Could you share the full crash report as attachment or through pastebin.com?

I managed to find the problem, it was Sophisticated Core, an add-on for Backpacks, which was outdated and I hadn't seen it, I updated it to the latest version and now it's working perfectly, thanks for your attention