The plugin does not have a valid header.

@andyboyag This could an installation / activation issue. Can you try

1. Deactivating and activating from the plugins page?
2. Can you try to delete and install again?

Me pasa lo mismo, estoy borrando y subiendo manualmente. Pero te produce mucha inseguridad este error, lo digo como usuario.

@marcelovidal Did you mean that the error exists even after re-installation?

I have de same problem

@mayomarina89 Can you share which theme you are using? Can you try switching themes (astra, 2023, hello) and let me know if this occurs in some themes or all ?