Badly formatted feature key

I incorrectly created a feature key with an invalid feature key. The feature is an integer value and the generated key had the feature set to null. When my app tries to retrieve the feature value the turboactivate interface gets a ‘memory not accessible’ fault. Now, even with a properly generated feature value, the code gets the same issue. I tried refreshing the turboactivate.dat file, but that didn't work. Any suggestions on how to recover?