Attempting to talk to the arena object crashes the game

Attempting to socialise with the arena object triggers a crash.

Game version: 0.6.7
OS: Windows 10
Crash log:


############################################################################################
ERROR in
action number 1
of Key Press Event for E-key Key
for object obj_player:

STRING argument is unset############################################################################################
gml_Script_save_int (line 2)
gml_Script_scr_SaveMain (line 657)
gml_Script_scr_SaveGame (line 19)
gml_Script_scr_DecorationInteract (line 2192)
gml_Object_obj_player_KeyPress_69 (line 42)

Thanks, fixed for the next patch!