CC plugin admin fails to load with PHP 8

[xolotl]

Description

When moving to PHP 8.0.21, Creative Commons (CC) plugin admin settings fails to load with fatal error.

Reproduction

1. Upgrade PHP in WordPress server environment from PHP 7.4.30 to PHP 8.0.21 (or perhaps any version of PHP 8).
2. Try to load the CC plugin admin view /wp-admin/options-general.php?page=cc-admin
3. See error (paths truncated so as not to show full server details): Fatal error: Uncaught ValueError: Unknown format specifier ";" in /wp-content/plugins/creative-commons/includes/class-creativecommons.php:927 Stack trace: #0 /wp-content/plugins/creative-commons/includes/class-creativecommons.php(927): printf('<img src="%1$s"...', 'http://localhos...') #1 /wp-includes/class-wp-hook.php(307): CreativeCommons->create_admin_page('') #2 /wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters('', Array) #3 /wp-includes/plugin.php(476): WP_Hook->do_action(Array) #4 /wp-admin/admin.php(259): do_action('settings_page_c...') #5 /wp-admin/options-general.php(10): require_once('...') #6 {main} thrown in /wp-content/plugins/creative-commons/includes/class-creativecommons.php on line 927

Expectation

CC plugin admin view will load when using PHP 8.

Screenshots

Expected CC plugin admin view

Server Environment

Server Environment where error is not generated

• WordPress Version 6.0.1
• Creative Commons plugin Version 2022.07.1
• Linux 5.10.47-linuxkit x86_64
• Apache/2.4.54 (Debian)
• PHP 7.4.30 (Supports 64bit values)

Server Environment where error is generated

• WordPress Version 6.0.1
• Creative Commons plugin Version 2022.07.1
• Linux 5.10.47-linuxkit x86_64
• Apache/2.4.54 (Debian)
• PHP 8.0.21 (Supports 64bit values)

Resolution

• I would be interested in resolving this bug.