VPlant, Hello and welcome. Do you live in a warm area? Could you put your plant outside for spring-summer? I would take it out of the pot to check the roots. You may find them rotted. Remove any soft or dead root and let dry out for a few days and re-pot it up using about 1/2 your old soil with perlite. Sold in most stores that sell plants and is cheap. It may have some life stored in the stems. Give it plenty of bright light once you see any signs of life.
