Endstop settings modified. Witbox have max endstops for X and Y.

Marlin/example_configurations/WITBOX/Configuration.h

 // Specify here all the endstop connectors that are connected to any endstop or probe.
 // Almost all printers will be using one per axis. Probes will use one or more of the
 // extra connectors. Leave undefined any used for non-endstop and non-probe purposes.
-#define USE_XMIN_PLUG
-#define USE_YMIN_PLUG
+//#define USE_XMIN_PLUG
+//#define USE_YMIN_PLUG
 #define USE_ZMIN_PLUG
-//#define USE_XMAX_PLUG
-//#define USE_YMAX_PLUG
+#define USE_XMAX_PLUG
+#define USE_YMAX_PLUG
 //#define USE_ZMAX_PLUG
 
 // coarse Endstop Settings