Why is the category name cut off?

The category name is being cut off by your shopping cart database settings. Most shopping carts limit the category name to 32 characters. However some of the STC category names are longer.

To fix. Open phpMyAdmin and click categories_descriptions on the left side > on the top right side click Structure, find on the right side categories_name and click the little pen icon. You'll see something like this:

Change the Length/Value to 64 and save. Then make sure STCtoCart is in Fresh New Database mode and manually press the Category Button to rewrite this table.