API connection unsuccessful

Hello good evening,

I’m being unable to use the plugin because it does not connect with the API
On the side of every image file shows:
1 size not compressed
Latest error: cURL: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm [35]
and on Media tab shows: Error: cURL: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm [35]

I’ve defined the API key thru wp-config but I cannot overcome the issue.
Could you kindly assist?

thx
nuno
site:

https://ww.wp.xz.cn/plugins/tiny-compress-images/