Syncing Instance is_full Error

Hi
Im using gm studio 1.4.1757 and gmserver 2.2 all version.
It's work well with is_onetime,is_extended but is_full

e = instance_create(238,141,obj_player_kicker)
//gms_instance_sync_var_add("team", 1)
gms_instance_sync(e,is_full)

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

string_byte_length argument 1 incorrect type (5) expecting a String (YYGS)
at gml_Script_XGms_ve_getBestWayToSend (line 81) - var length = string_byte_length(argument0);
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stack frame is
gml_Script_XGms_ve_getBestWayToSend (line 81)
called from - gml_Script_XServer_writevariable (line 2) - var _type = XGms_ve_getBestWayToSend(argument3, argument4);
called from - gml_S