PHP related error message

Hello:

The error_log file on my website repeatedly shows me the following error:

[04-Dec-2023 00:15:02 UTC] PHP Parse error: syntax error, unexpected ‘AuthorAvatarsShortcode’ (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /home2/letralia/public_html/letralia.com/wp-content/plugins/author-avatars/lib/AuthorAvatars.class.php on line 31

I found the error because my website has been experiencing high spikes in CPU and memory usage. I don’t know if this is related to the error I’m talking about. I notice that the error started appearing on October 14 of this year. My website works with PHP 8.1.

I hope you can help us.

Best regards,

Jorge.