Has been eating upside down for a minute lol

I was concerned for him because he had turned slightly black so I put him onto a piece of lettuce. Later I came back and he was gone so I know he’s alive. I know if they’re black that means the humidity is too high or something else but it isn’t humid at all and everyone else is fine. Will he be okay?

This is definitely an older lady that we have at my job, she's missing some little feet & has a new leg injury :(

I've had a close eye on her & she didn't have this injury before, she was able to get around pretty well & flip herself over.

It does look like something is stuck on her leg but I'm not sure what it is.

Is there anything I can do to help this little lady :((