Crash when getting castle upgrade

Might be fixed already as I saw a new version. But I had just finished the citizen recruitment upgrade and hit ok then got this.


############################################################################################
FATAL ERROR in
action number 1
of
for object obj_potion:

Unable to find any instance for object index ‘112689’ name ‘’
at gml_Script_scr_StableRefresh
############################################################################################

stack frame is
gml_Script_scr_StableRefresh (line 0)
gml_Script_scr_StartupThroneroom
gml_Room_castle_throneroom_Create