Assuming you mean Fritzing 0.9.3b that is some 6 or 7 years old. Current version is 0.9.10 (which has many bug fixes.) Available from Fritzing.org for download (with a donation to fund the project) I suggest upgrading. As to your motor driver a google search for “fritzing part tb6600” turns up several hits as custom parts that are downloadable from the net (it isn’t in core parts.)
Peter