Error Logging In

I'm getting a strange error when I attempt to log into a dev site running on a locally hosted machine. I get the log in screen, but after I enter the credentials, I got the following response:

{
 "Code": -1,
 "Exception": "System.MissingMethodException: Method not found: 'StackExchange.Redis.RedisValue StackExchange.Redis.RedisValue.op_Implicit(System.Memory`1)'."
}

Any suggestions on what might be causing the error? Or where to look? Nothing in the logs is jumping out at me.

I do have another instance of Creatio running on the same server and it runs just fine.