Last night, SysStats Monitor 2.1 was released in AppStore. However an problem was found, which any process names was not shown in the process list view.
I already submitted the bug fixed version as 2.1.1 to Apple.
And could you suspend update this app until 2.1.1 will be released.
Let me tell you further that iPad version and free version of this app, SysStats Lite, does not have this problem, so you can use normally.
I am afraid it may be inconvenient, but please wait a little longer.