[OJS 3.2.1-1] Cannot create new custom blocks

Hi,
I have just updated to 3.2.1-1.
I see that I cannot publish any new custom blocks in sidebar. I can edit existing ones, but cannot publish new ones.

The plugin is enabled, but I cannot create no new blocks

Thanks in advance for your help.

Regards,
Juan

This has come up a couple of times, but I found this answer and it works for me.

You need to go to Settings >Website> Setup and enable the blocks there.