A TLS warning alert has been received

[m0ck69]

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I get: "A TLS warning alert has been received. Unable to open key file" when trying to download from atresplayer.
Link:
https://geodeswowa3player.akamaized.net/vcg/_definst_/assets7/2018/07/10/20708484-671B-4430-922F-3730840D5775/hls.smil/playlist.m3u8?pulse=assets7%2F2018%2F07%2F10%2F20708484-671B-4430-922F-3730840D5775%2F%7C1555585200%7Cf78bb71294263d7c9f2f89dbb007d2fb