Yes, these data ribbons are thinner than paper and easily damaged, especially near the ends or at sharp-angled corners. The circuit traces are just a screenprinted conductive ink. Lowest cost possible.
If you've only broken a few traces then you might be able to continue using the ribbon and add some point-to-point wiring (30AWG or smaller; such as kynar wire-wrap or enameled magnet wire).
If you've torn through a whole bunch of traces then you'd be better off replacing the entire ribbon. You might be able to modify something like an old IDE drive cable to this purpose. Of course you'd need to then somehow match all the pins/leads into the end connectors. You might get lucky and find a similar ribbon (with the same number of traces and same physical dimensions) in some other dead electronic device, usually something with a display panel (like a laptop, phone, PDA, etc). You can attempt to repair or splice the ribbon itself but it's exceptionally difficult and requires
mastery of soldering techniques. Your simplest option might be to salvage from a dead/damaged G15 (the G19, G110, and G510
might use the same ribbon).