Blue screen shut down, camohres.sys

Hello, my computer has been working fine, but now I'm getting the blue screen of death a couple of times a day. The file that shows is camohres.sys. Does anyone know what might be wrong and if I can fix it?

Here are the details shown when restarted:

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: 50
BCP1: FFFFF8A01F453000
BCP2: 0000000000000000
BCP3: FFFFF88001666A38
BCP4: 0000000000000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1

Thank you,
Brad