Your succulent is a Sempervivum:). Tbh I would just throw this guy out and here’s why. It looks like this plant had been in not enough light, then all of a sudden it was put in too much light too fast. All plants should be acclimated slowly to stronger light, even succulents. Semps are definitely an outside plant. I have yet to see a nice Sempervivum plant grown inside. They’re very hardy down to -20F. So outside they should go;). Next succulents need the best drainage around, and from the looks of it your mix looks water retentive. Most store bought cactus mixes are peat based which either retains water when watered too much. Then if let to dry out, which most succulents need, the peat will become hydrophobic and repell water. I find peat when dried out chokes the roots too. An easy fix is 50%-60 rinsed strained perlite or pumice combined with cactus mix. Pots should always have holes. Can succulents be grown in pots without holes? Yes, but it’s a tricky thing. Drainage holes are a must. Lastly if you decide to buy another Sempervivum they are monocarpic. Which means they bloom once and die:(. Most of the time they’ve produced little babies for you before they kick the bucket;). I have a few starting to bloom now. Goodluck;). ps- I hope I didn’t discourage you. Low light causes weak growth and it can be hard to bring them back. I’m just trying to save you time, but if you want to see what happens with your little plant that’s fine;). Just repot in the mix I suggested, try to get all the old mix off the roots before putting in new mix, and acclimate slowly to stronger light. Morning sun afternoon shade is a good start, and tbh that could be enough sun for your Semp depending on what your climate is like. Sempervivum fry in my summer sun no matter how slowly I acclimate;) edit: I was writing my long winded comment while Poly put up a nice short sweet one.

To add to Stefan's comments: Keep pot with plants out of cachepot - water could be sitting in it and reabsorb, keeping it too soggy. It would help if you used better draining mix (Stefan suggested coarse sand - make sure it is coarse. It needs to be big enough that it will not fall thru ordinary kitchen sifter) - succulents do not need very organic soil, and usually suffer in it from overwatering. See excellent proof IN THIS THREAD - very healthy succulents growing without soil. Those are outside, but mix could be replicated for any pot.

Looks to me like you have mealiebugs on your roots. Are there fat worm like insects in those white patches?

If that basket has a plastic liner which does not drain well, that could be part of your problem. If it were mine, I would repot them in their own pots (holes in the bottom) using fast draining commercial cactus and succulent mix combined 50-50 with perlite or pumice from the nursery. The long ones could be clipped off making cuttings. I know it’s hard to get supplies now, but the plants have “had it” with that basket. My 2 cents.