#DeltaKosselMini #Marlin #BedLevellingIssue/AllenKey

Hello everyone, i'm leveling bed my kossel mini. I used Marlin 1.1.9 and bugfix1.1. Type of probe i used was allen key and type of bed levelling was bilinear. When leveling bed, this probe move and touch bed lightly. That was OK. Unfortunately, when bed levelling almost done, it move to center of bed and move down a small gap. And it stopped. Screen announce an error ( below picture) . And here is my config file. I cannnot find the reason. Please help me. Thank you !