Windows 7, AMD R9 380
Broken: 2.79b f4dc9f9d68b
Short description of error
This command appears to be attempting to access the first modifier in the stack. If you have a non-array modifier in the stack, it fails with "Error: '<Other Modifier>' object has no attribute 'use_object_offset'"
If you DO have an array modifier in slot one, it messes that one up instead of modifying the new one it makes.
Exact steps for others to reproduce the error
Make sure addon is enabled
Create any mesh
Add any modifier to mesh except an array. Bevel or Mirror work.
Shift-A -> Array Mods -> circle array
Error notification in console