Emails are not working on the website

Replies: 0

Error on the website – There was an error trying to send your message. Please try again later.
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Error Log –

Versions:
WordPress: 5.3.9
WordPress MS: No
PHP: 7.3.20
WP Mail SMTP: 3.1.0

Params:
Mailer: gmail
Constants: No
Client ID/Secret: Yes
Auth Code: Yes
Access Token: Yes

Server:
OpenSSL: OpenSSL 1.1.1c FIPS 28 May 2019
PHP.allow_url_fopen: Yes
PHP.stream_socket_client(): Yes
PHP.fsockopen(): Yes
PHP.curl_version(): 7.61.1