Cannot sell shares I already hold

Thanks all,

This issue has been resolved now.
Yes it was a company merger taking place. My old shares were consolidated into the newly formed company. It just took time for the information to update within various sources. In the meantime I coudnt trade because the old company officially no longer existed.

I am down around 15% on my new consolidated shares, although it has started recovering, albeit slowly. I will continue to hold them.

All the information within the app is now up to date and working as it should.

Kudos.