To comment on your concern, beyond perhaps the "Circular Cam no longer working" is in:
- need of maintenance
- the line is worn
- the line is wrong size
- perhpas the line needs replacement
- perhpas a circular cam is the wrong tool
- Perhpas a cleat or clutch would better serve.
All of which are dependent on the way you are using the boat or the need to adjust the outhaul.
If cruising and not constantly adjusting the outhaul, I would switch to a more permanent tool (i.e. a cleat) to hold the line in place.
If racing I would use the cam cleat as it is a simple way to hold the outhaul in place for a temporary period and can be easily released to be adjusted.
Those are to opposite ends of the spectrum. There are many options in between. Selection of a different tool is about how you are sailing.