Reduce the number of Alternate Links.
The alternate link to the page itself is missing.
A country is specified wrong in alternate links: en-ax
A country is specified wrong in alternate links: en-bl
A country is specified wrong in alternate links: en-bq
A country is specified wrong in alternate links: en-cw
A country is specified wrong in alternate links: en-gg
A country is specified wrong in alternate links: en-im
A country is specified wrong in alternate links: en-je
A country is specified wrong in alternate links: en-mf
A country is specified wrong in alternate links: en-fx
A country is specified wrong in alternate links: en-an
A country is specified wrong in alternate links: en-ps
A country is specified wrong in alternate links: en-sx
A country is specified wrong in alternate links: en-xk
A country is specified wrong in alternate links: it-ax
A country is specified wrong in alternate links: it-bl
A country is specified wrong in alternate links: it-bq
A country is specified wrong in alternate links: it-cw
A country is specified wrong in alternate links: it-gg
A country is specified wrong in alternate links: it-im
A country is specified wrong in alternate links: it-je
A country is specified wrong in alternate links: it-mf
A country is specified wrong in alternate links: it-fx
A country is specified wrong in alternate links: it-an
A country is specified wrong in alternate links: it-ps
A country is specified wrong in alternate links: it-sx
A country is specified wrong in alternate links: it-xk
An URL is specified multiple times in alternate links.
(Nice to have)