Unable to add menu vmdStore

[Critwika]

Hello,

When I try to open vmdStore via Extension -> vmd Store > vmd Store, nothing happens!
I get this message:
ERROR) Menu vmdStore already exists.
The vmdStore window could not be created:
Unable to add menu vmdStore

For reference-
System- Linux
.vmdrc file:

VMD Store ## START

play "/home/ccg3/softwares/BioSIM-Research-Group-vmdStore-19131bc/vmdStore/vmdStore.rc"

VMD Store ## END

menu main on

[Critwika]

Ref scrrenshot