Same here.
Had to go into the actual file manager to delete the plugin, tried to reinstall etc, the plugin seems completely messed up.
After finally getting it to work again, it stopped again after I had entered most of my codes again.
Unfortunately I will have to uninstall (through my hosting again since accessing the plugins dashboard is not possible) as this seems too unreliable now.
Hey there,
I had the same problem and contacted inlinkz on twitter about it.
Simple fix:
In the shortcode, change mode=1 to mode=0 and the linkup works just fine! It’s a bug they know about.