Please find our analysis result below.
In order to make your website functional again you need to change file permissions at least to 604 after cleaning up.

The following files have been likely uploaded by others.
Please check these files and delete them if neccessary.
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~/app395378437/wp-content/languages/plugins/themes.php
~/app395378437/wp-content/wp-cron.php
~/app395378437/wp-content/plugins/ionos-assistant/hyqrysde.php
~/app395378437/wp-includes/index.php
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~/app395378437/wp-content/themes/chocolat/font/themes.php
~/app395378437/wp-content/themes/social-magazine/languages/tveoisdc.php
~/app395378437/.metadata/.htaccess
~/app395378437/wp-content/plugins/ionos-performance/js/wp-login.php
~/app395378437/wp-content/uploads/wppa/watermarks/tuxysaqn.php
~/app395378437/wp-includes/wp-cron.php
~/app395378437/wp-content/themes/cubic/js/themes.php
~/app395378437/images/index.php
~/app395378437/wp-content/plugins/ionos-performance/ionos-performance/vendor/ajax.php
~/app395378437/images/wp-cron.php
~/app395378437/wp-includes/pomo/pomo/kupnhcgy.php
~/app395378437/wp-admin/wp-cron.php

The following files have been likely modified by others.
Please check these files and re-upload them from a clean backup.
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~/app395378437/images/wp-cron.php
~/wrigglesworths/index.php
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~/wp-includes/block-supports/index.php
~/wp-includes/php-compat/index.php
~/Wrigglesworths.co.uk/wp-content/plugins/foogallery/freemius/templates/account/e4a432e5.php
~/app395378437/.metadata/.htaccess
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~/app395378437/wp-scripts.php
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