It is a simple repair, The pulley that the drum belt runs on has broken/melted as mine did I would assume.
You can see if this is the issue by pulling the dryer out from the wall and unscrewing the area where the dryer vent tube connects, remove that by lifting up and pulling out and you will be able to observe the pully inside and see if that is indeed the issue. If it is, you can get a replacement pully and fix it yourself for about $20 and 15 minutes of work!
This was my Part #: DC93-00634A And the video I followed to replace it!
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