Ask to https://twitter.com/shwetank it worked for me.

It's OK now, thanks to https://twitter.com/shwetank

Same as me: https://forums.opera.com/topic/16456/error-while-trying-to-upload-an-extension-that-have-been-previously-removed/2

Any info from the Opera Support?

Can you manually delete "Tab Modifier" add-on as I can recreate it.

Thanks

PS: This is this extension https://chrome.google.com/webstore/detail/tab-modifier/hcbgadmbdkiilgpifjgcakjehmafcjai

Hello

I've submitted "Tab Modifier", but I removed it from the panel.

Now I want to reupload the same extension but it says:

"A package with this name already exists. Please change the name or upgrade the existing package."

I'm kind of stuck here, can you do something about this?

Thanks you

Bests