can anyone help?

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FATAL ERROR in
action number 1
of Step Event0
for object GMS:

abs argument 1 incorrect type (5) expecting a Number (YYGR)
at gml_Script_XServer_updatecoords (line 59) - if (abs(_speedUp) >= 2 * abs(_speedto))
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stack frame is
gml_Script_XServer_updatecoords (line 59)
called from - gml_Script_XServer_step (line 783) - XServer_updatecoords(_m);
called from - gml_Script_gms_step (line 59) - __ret = XServer_step(__current_room);
called from - gml_Object_GMS_StepNormalEvent_1 (line 1) - gms_step()

i got this error when try sync instance and make session game