Sorry my bad… see below.
I just turned on the plugin to throw the error and these are the logs now showing up…
2021/03/11 05:13:59 [error] 92819#92819: *58181 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Call to a member function get_value() on null in /www/vanishingink_252/public/wp-content/plugins/easy-watermark/src/classes/Features/CacheBusting.php:112
Stack trace:
#0 /www/vanishingink_252/public/wp-includes/class-wp-hook.php(292): EasyWatermark\Features\CacheBusting->wp_get_attachment_image_src(Array, 1980, Array, false)
#1 /www/vanishingink_252/public/wp-includes/plugin.php(212): WP_Hook->apply_filters(Array, Array)
#2 /www/vanishingink_252/public/wp-includes/media.php(991): apply_filters('wp_get_attachme...', Array, 1980, Array, false)
#3 /www/vanishingink_252/public/wp-includes/media.php(1208): wp_get_attachment_image_src(1980, Array)
#4 /www/vanishingink_252/public/wp-content/themes/Divi/core/functions.php(1481): wp_get_attachment_image_srcset(1980, Array)
#5 /www/vanishingink_252/public/wp-content/themes/Divi/includes/builder/module/helpers/MultiViewOptions.php(1871): et_get_image_srcset_sizes('https://www.van...')
#6 /www/vanishingink_252/pu" while reading response header from upstream, client: 27.32.105.198, server: www.vanishingink.com.au, request: "GET / HTTP/1.0", upstream: "fastcgi://unix:/var/run/php7.3-fpm-vanishingink.sock:", host: "www.vanishingink.com.au"
2021/03/11 05:13:54 [error] 92818#92818: *58177 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Call to a member function get_value() on null in /www/vanishingink_252/public/wp-content/plugins/easy-watermark/src/classes/Features/CacheBusting.php:112
Stack trace:
#0 /www/vanishingink_252/public/wp-includes/class-wp-hook.php(292): EasyWatermark\Features\CacheBusting->wp_get_attachment_image_src(Array, 1980, Array, false)
#1 /www/vanishingink_252/public/wp-includes/plugin.php(212): WP_Hook->apply_filters(Array, Array)
#2 /www/vanishingink_252/public/wp-includes/media.php(991): apply_filters('wp_get_attachme...', Array, 1980, Array, false)
#3 /www/vanishingink_252/public/wp-includes/media.php(1208): wp_get_attachment_image_src(1980, Array)
#4 /www/vanishingink_252/public/wp-content/themes/Divi/core/functions.php(1481): wp_get_attachment_image_srcset(1980, Array)
#5 /www/vanishingink_252/public/wp-content/themes/Divi/includes/builder/module/helpers/MultiViewOptions.php(1871): et_get_image_srcset_sizes('https://www.van...')
#6 /www/vanishingink_252/pu" while reading response header from upstream, client: 27.32.105.198, server: www.vanishingink.com.au, request: "GET / HTTP/1.0", upstream: "fastcgi://unix:/var/run/php7.3-fpm-vanishingink.sock:", host: "www.vanishingink.com.au", referrer: "https://www.vanishingink.com.au/wp-admin/plugins.php?plugin_status=all&paged=1&s"
2021/03/11 05:13:50 [error] 92818#92818: *58172 limiting requests, excess: 0.646 by zone "purgeAll", client: 127.0.0.1, server: www.vanishingink.com.au, request: "GET /kinsta-clear-cache-all HTTP/1.1", host: "localhost", referrer: "https://localhost/kinsta-clear-cache-all"
2021/03/11 05:13:48 [error] 92819#92819: *58170 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Call to a member function get_value() on null in /www/vanishingink_252/public/wp-content/plugins/easy-watermark/src/classes/Features/CacheBusting.php:112
Stack trace:
#0 /www/vanishingink_252/public/wp-includes/class-wp-hook.php(292): EasyWatermark\Features\CacheBusting->wp_get_attachment_image_src(Array, 1368, Array, false)
#1 /www/vanishingink_252/public/wp-includes/plugin.php(212): WP_Hook->apply_filters(Array, Array)
#2 /www/vanishingink_252/public/wp-includes/media.php(991): apply_filters('wp_get_attachme...', Array, 1368, Array, false)
#3 /www/vanishingink_252/public/wp-includes/media.php(1208): wp_get_attachment_image_src(1368, Array)
#4 /www/vanishingink_252/public/wp-content/themes/Divi/core/functions.php(1481): wp_get_attachment_image_srcset(1368, Array)
#5 /www/vanishingink_252/public/wp-content/themes/Divi/includes/builder/module/helpers/MultiViewOptions.php(1871): et_get_image_srcset_sizes('https://www.van...')
#6 /www/vanishingink_252/pu" while reading response header from upstream, client: 35.189.18.116, server: www.vanishingink.com.au, request: "GET /?ao_speedup_cachebuster=85994 HTTP/1.0", upstream: "fastcgi://unix:/var/run/php7.3-fpm-vanishingink.sock:", host: "www.vanishingink.com.au", referrer: "https://www.vanishingink.com.au/?ao_speedup_cachebuster=85994"