Look at your error. There appears to be a security issue.

An error occurred in the Microsoft .NET Framework while trying to load assembly id 65536.

The server may be running out of resources, or the assembly may not be trusted with PERMISSION_SET = EXTERNAL_ACCESS or UNSAFE.

Run the query again, or check documentation to see how to solve the assembly trust issues. For more information about this error:

System.IO.FileLoadException: Could not load file or assembly emsevents, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' or

one of its dependencies. An error relating to security occurred.

Are you sure you disable the "Job" and not a "Step" in the job? I would suggest scripting out the job to a new window. Saving and then dropping the job. Then if another job is calling that one it will fail.