Crash when getting to Perks screen

Playing v.0.0.1 on PC

Got done with third fight , and got the prompt that I leveled up. Was about to enter the Perks menu when the game crashed
Playing as life


############################################################################################
FATAL ERROR in
action number 1
of Create Event
for object obj_royaltysheet:

Push :: Execution Error - Variable Index [0,16] out of range [1,16] - -7.royarr(100001,16)
at gml_Script_scr_RoyaltyAlphabetize
############################################################################################

stack frame is
gml_Script_scr_RoyaltyAlphabetize (line -1)
gml_Script_scr_RoyaltyGetPerkList
gml_Object_obj_royaltysheet_Create_0
called from - gml_Script_instance_create (line -1) -
gml_Object_obj_menu_KeyPress_69

Thanks for the info!