Erro ao criar um novo email

Oi Gabriel, tudo bem?
Bom, meu mautic estava funcionando normalmente ate que tentei criar um novo email hoje e quando vou salvar dá erro:
Uh oh! Eu acho que quebrei. Se eu fizer de novo, por favor comunique ao administrador do sistema!
500 Internal Server Error

Tentei reiniciar o servidor, limpar cache, e nao resolveu…
estou usando a versao v2.16.5

no meu log de erros tem as seguintes mensagens:

[2021-01-29 01:37:08] mautic.ERROR: Uncaught PHP Exception Symfony\Component\HttpKernel\Exception\BadRequestHttpException: “Invalid xml message received” at /var/www/news.gabrielajunges.com/htdocs/vendor/friendsofsymfony/rest-bundle/FOS/RestBundle/EventListener/BodyListener.php line 127 {“exception”:"[object] (Symfony\Component\HttpKernel\Exception\BadRequestHttpException(code: 0): Invalid xml message received at /var/www/news.gabrielajunges.com/htdocs/vendor/friendsofsymfony/rest-bundle/FOS/RestBundle/EventListener/BodyListener.php:127)"} []
[2021-01-29 05:07:23] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 05:39:31] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 05:43:42] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 05:44:53] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 05:54:02] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 06:06:26] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 06:11:14] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 03:57:47] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 07:25:04] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 07:54:46] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 08:18:44] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 08:30:57] mautic.WARNING: Received SES webhook of type ‘Notification’ but couldn’t understand payload [] []
[2021-01-29 07:29:22] mautic.CRITICAL: Uncaught PHP Exception Doctrine\DBAL\Exception\DriverException: "An exception occurred while executing ‘INSERT INTO mtc_emails (is_published, date_added, created_by, created_by_user, date_modified, modified_by, modified_by_user, checked_out, checked_out_by, checked_out_by_user, name, description, subject, from_address, from_name, reply_to_address, bcc_address, template, content, utm_tags, plain_text, custom_html, email_type, publish_up, publish_down, read_count, sent_count, variant_sent_count, variant_read_count, revision, lang, variant_settings, variant_start_date, dynamic_content, headers, public_preview, category_id, translation_parent_id, variant_parent_id, unsubscribeform_id, preference_center_id) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)’ with params [0, “2021-01-29 10:29:22”, 1, “Gabriela Junges”, null, null, null, null, null, null, “parcelamento-boleto”, null, “\ud83e\udd29 Parcelamento no Boleto Liberado {contactfield=firstname}”, null, null, null, null, “blank”, “a:0:{}”, “a:4:{s:9:“utmSource”;N;s:9:“utmMedium”;N;s:11:“utmCampaign”;N;s:10:“utmContent”;N;}”, null, "\n

Neste log não tem registros que indicam o erro que mencionou.
Já vi isso algumas vezes. Faz um snapshot e tenta forçar a atualização do banco de dados do Mautic.

https://academy.gerenciandoweb.com.br/mautic-wordops/atualizacao-forcada-do-banco-de-dados/