Attempt to set a `nullopt` value on VariableSetModes

After I generated variables via Styles to Variables plugin - I am not able of creating nor renaming my modes in variable collection. I always get the error in the console as below
image What can I do now? Thanks a lot!

Hey @Barbora_Suchanova ,
Sorry to hear you are having trouble with the plugin! As the plugin is created by community members and not Figma, please contact the plugin’s owner directly by giving them feedback under the plugin or send them directly a message on the right “Support: plugin’s owner email” : here)

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