Warnings - Invalid argument supplied for foreach()

Hi, after the update from 2.1.5 to 2.1.10 i get a warning ONLY in the Admin → Customizer
Any suggestions?

<b>Warning</b>:  Invalid argument supplied for foreach() in <b>/var/www/web27243763/html/web2021/wp-content/themes/sydney/inc/customizer/controls/typography/class_sydney_typography.php</b> on line <b>128</b><br />
<br />
<b>Warning</b>:  Invalid argument supplied for foreach() in <b>/var/www/web27243763/html/web2021/wp-content/themes/sydney/inc/customizer/controls/typography/class_sydney_typography.php</b> on line <b>128</b><br />
<br />
<b>Warning</b>:  Invalid argument supplied for foreach() in <b>/var/www/web27243763/html/web2021/wp-content/themes/sydney/inc/customizer/controls/typography/class_sydney_typography.php</b> on line <b>128</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/web27243763/html/web2021/wp-content/themes/sydney/inc/customizer/controls/typography/class_sydney_typography.php:128) in <b>/var/www/web27243763/html/web2021/wp-includes/functions.php</b> on line <b>6712</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/web27243763/html/web2021/wp-content/themes/sydney/inc/customizer/controls/typography/class_sydney_typography.php:128) in <b>/var/www/web27243763/html/web2021/wp-admin/includes/misc.php</b> on line <b>1310</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/web27243763/html/web2021/wp-content/themes/sydney/inc/customizer/controls/typography/class_sydney_typography.php:128) in <b>/var/www/web27243763/html/web2021/wp-admin/customize.php</b> on line <b>126</b><br />

Greetings
VOlker

Hello Volker,

First thanks for using our theme!

As you are a PRO member, could you please submit a ticket through the below link and at same time, send me the link with temporary access to your WP Admin Dashboard?
https://athemes.com/support-ticket/

You can generate the link with this plugin .

P.S.: Ensure the link expiry is set to 7 days and all admin rights are enabled.

Probably your server is blocking the request to google fonts file somehow. With the access to your WP Admin are I can debug the code and discover what’s happening.

Kind Regards,

Rodrigo.

aThemes Support