Continuously getting "Bluetooth share stopped working" error

I have an HTC One running Android Revolution HD (ARHD), with Android 4.4.2, and I've been getting this error that says >Bluetooth share has stopped working. The problem is that I have *no clue* what's causing this error to appear. I think it started appearing after I clicked the "share" button in an app - but even after fully rebooting my device, I STILL keep getting this error. Does anyone know what could cause this error? And more importantly - how do I debug what app is causing this error? I just don't even know where to start investigating.