[Hummingbird] Humingbird Lost Her Shirt?

Was checking out the error_log, and found a bunch of these happening now,
[15-Jun-2018 15:04:04 UTC] PHP Warning: file_get_contents(): https:// wrapper is disabled in the server configuration by allow_url_fopen=0 in /home/mplawhost/public_html/wp-content/plugins/wp-hummingbird/core/modules/minify/class-minify-group.php on line 1349
[15-Jun-2018 15:04:04 UTC] PHP Warning: file_get_contents(https://hb.wpmucdn.com/matthewpillado.com/d469f392-6f8c-4d11-a732-adb9b0dd7e53.css): failed to open stream: no suitable wrapper could be found in /home/mplawhost/public_html/wp-content/plugins/wp-hummingbird/core/modules/minify/class-minify-group.php on line 1349

Should I be worried?
Matthew

Found some more in a different error_log too,

[15-Jun-2018 15:04:10 UTC] PHP Warning: Illegal string offset 'unslider' in /home/mplawhost/public_html/wp-content/plugins/wp-hummingbird/core/modules/minify/class-minify-group.php on line 429
[15-Jun-2018 15:04:10 UTC] PHP Warning: Illegal string offset 'unslider' in /home/mplawhost/public_html/wp-content/plugins/wp-hummingbird/core/modules/minify/class-minify-group.php on line 450
[15-Jun-2018 15:04:11 UTC] PHP Warning: Illegal string offset 'unslider' in /home/mplawhost/public_html/wp-content/plugins/wp-hummingbird/core/modules/minify/class-minify-group.php on line 429
[15-Jun-2018 15:04:11 UTC] PHP Warning: Illegal string offset 'unslider' in /home/mplawhost/public_html/wp-content/plugins/wp-hummingbird/core/modules/minify/class-minify-group.php on line 450