Uncaught WebPConvert

I have two identical platforms, one is my production one and another I use as a test environment.
Both on same server, same PHP configuration, modules, and so on.
Difference between then is only production uses https://domain.com and test uses https://test.domain.com
On production board everything runs ok but in test board I keep receiving fatal-error once in a day like bellow.
And as you can see on screen page, WP-Optimize recognize imagick and gd are both installed just like production board.

2026-04-29T00:00:09+00:00 Critical Uncaught WebPConvert\Exceptions\InvalidInput\InvalidImageTypeException: Unsupported mime type: image/webp in /home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/rosell-dk/webp-convert/src/Helpers/InputValidator.php:41 Additional context{ "error": { "type": 1, "file": "/home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/rosell-dk/webp-convert/src/Helpers/InputValidator.php", "line": 41 }, "remote-logging": true, "backtrace": [ "", "#0 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/rosell-dk/webp-convert/src/Helpers/InputValidator.php(48): WebPConvert\Helpers\InputValidator::checkMimeType('/home/user...')", "#1 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/rosell-dk/webp-convert/src/Helpers/InputValidator.php(58): WebPConvert\Helpers\InputValidator::checkSource('/home/ user...')", "#2 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/rosell-dk/webp-convert/src/Convert/Converters/AbstractConverter.php(114): WebPConvert\Helpers\InputValidator::checkSourceAndDestination('/home/ user...', '/home/user...')", "#3 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/rosell-dk/webp-convert/src/Convert/Converters/AbstractConverter.php(210): WebPConvert\Convert\Converters\AbstractConverter->__construct('/home/ user ', '/home/user...', Array, NULL)", "#4 [internal function]: WebPConvert\Convert\Converters\AbstractConverter::createInstance('/home/ user...', '/home/user...', Array, NULL)", "#5 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/rosell-dk/webp-convert/src/Convert/ConverterFactory.php(80): call_user_func(Array, '/home/user...', '/home/user...', Array, NULL)", "#6 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/rosell-dk/webp-convert/src/Convert/ConverterFactory.php(110): WebPConvert\Convert\ConverterFactory::makeConverterFromClassname('WebPConvert\\Con...', '/home/user...', '/home/user...', Array, NULL)", "#7 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/webp/class-wpo-webp-utils.php(47): WebPConvert\Convert\ConverterFactory::makeConverter('imagick', '/home/user...', '/home/ user...')", "#8 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/webp/class-wpo-webp-convert.php(50): WPO_WebP_Utils::perform_webp_conversion('imagick', '/home/ user...', '/home/user...')", "#9 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/webp/class-wpo-webp-convert.php(25): WPO_WebP_Convert->check_converters_and_do_conversion('/home/user...', '/home/user...')", "#10 /home/ user/test.domain.com /wp-content/plugins/wp-optimize/webp/class-wpo-webp-utils.php(33): WPO_WebP_Convert->convert('/home/user...')", "#11 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/webp/class-wpo-webp-convert-image-task.php(33): WPO_WebP_Utils::do_webp_conversion('/home/user...')", "#12 /home/user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task.php(296): WPO_Webp_Convert_Image_Task->run()", "#13 /home/user/test.domain.com /wp-content/plugins/wp-optimize/vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task-manager.php(53): Updraft_Task_1_2->attempt(0)", "#14 /home/ user/ test.domain.com /wp-content/plugins/wp-optimize/vendor/team-updraft/common-libs/src/updraft-tasks/class-updraft-task-manager.php(127): Updraft_Task_Manager_1_4->process_task(Object(WPO_Webp_Convert_Image_Task))", "#15 /home/ user/ test.domain.com /wp-content/plugins/wp-optimize/webp/class-wpo-webp-task-manager.php(64): Updraft_Task_Manager_1_4->process_queue('webp-convert-co...')", "#16 /home/ user/ test.domain.com /wp-includes/class-wp-hook.php(341): WPO_Webp_Task_Manager->webp_convert_compressed_images()", "#17 /home/ user/ test.domain.com /wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters('', Array)", "#18 /home/ user/ test.domain.com /wp-includes/plugin.php(570): WP_Hook->do_action(Array)", "#19 /home/ user/ test.domain.com /wp-cron.php(191): do_action_ref_array('wpo_webp_conver...', Array)", "#20 {main}", "thrown" ] }