Antivirus for Mac

My macbook crashed and when I restarted computer norton gave the message " Norton AntiVirus Error: Antivirus Auto-Protect could not load the kernel extension

Please run LiveUpdate or reinstall Norton Antivirus and restart"

I uninstalled Norton as recommended on the Norton website. I then logged in to my account with Norton and tries to reinstall as recommended, but only got the message that there is no product to download.

On the Norton website I then found the following message "Norton AntiVirus for Mac cannot be managed through Norton account portal" under the download page.

How do I get my Norton AnntiVirus for mac reinstalled (my subscription runs till next year) ?

Does anyone have an idea ?

Thank you in advance for any messages