HELPPPP MY HERMIT CRAB IS CROAKING???? WHATDO I DO?

IT SOUNDS LIKE SHE IS CROAKING OR CRYIN I HAVE 2 HERMIT CRABS IVE HAD THEM FOR LIKE A YEAR AND A HALF WHAT IS WRONG WITH HER I CLEANED THERE CAGE YESTERDAY SHE IS ALSO DIGGING EVERYTHING UP I KNOW I ALREADY ASKED THIS BUT IM WORRIED SOME 1 TOLD ME THERE MATING BUT HTE OTHER 1 IS IN THE HERMIE HUT AND IT ISNT SCRATHING THE GLASS IT IS IN THE MIDDLE OF THE CAGE BETWEEN THE MULCH AND THE CALCIUM SAND I BOUGHT YESTERDAY AT PESTMART HELPPPP