SMTP Error: Could not authenticate.

I am getting a SMTP Error: Could not authenticate.

I am using an email account created from cpanel. I do all the set up necessary but I got the following error:

`Versions:
WordPress: 5.7.5
WordPress MS: No
PHP: 7.4.27
WP Mail SMTP: 3.2.1

Params:
Mailer: smtp
Constants: No
ErrorInfo: SMTP Error: Could not authenticate.
Host: mail.romanmartin.info
Port: 465
SMTPSecure: ssl
SMTPAutoTLS: bool(true)
SMTPAuth: bool(true)

Server:
OpenSSL: OpenSSL 1.1.1d 10 Sep 2019
Apache.mod_security: No

Debug:
Email Source: WP Mail SMTP
Mailer: Otro SMTP
SMTP Error: Could not authenticate.

SMTP Debug:
2022-01-14 11:43:33 Connection: opening to ssl://mail.romanmartin.info:465, timeout=300, options=array()

2022-01-14 11:43:33 Connection: opened

2022-01-14 11:43:33 SERVER -> CLIENT: 220-ns852.webempresa.eu ESMTP Mail Server 220- We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.

2022-01-14 11:43:33 CLIENT -> SERVER: EHLO http://www.romanmartin.info

2022-01-14 11:43:33 SERVER -> CLIENT: 250-cp667.webempresa.eu Hello http://www.romanmartin.info [178.33.117.204]250-SIZE 52428800250-8BITMIME250-PIPELINING250-PIPE_CONNECT250-AUTH PLAIN LOGIN250 HELP

2022-01-14 11:43:33 CLIENT -> SERVER: AUTH LOGIN

2022-01-14 11:43:33 SERVER -> CLIENT: 334 VXNlcm5hbWU6

2022-01-14 11:43:33 CLIENT -> SERVER: [credentials hidden]

2022-01-14 11:43:33 SERVER -> CLIENT: 334 UGFzc3dvcmQ6

2022-01-14 11:43:33 CLIENT -> SERVER: [credentials hidden]

2022-01-14 11:43:35 SERVER -> CLIENT: 535 Incorrect authentication data

2022-01-14 11:43:35 SMTP ERROR: Password command failed: 535 Incorrect authentication data

SMTP Error: Could not authenticate.

2022-01-14 11:43:35 CLIENT -> SERVER: QUIT

2022-01-14 11:43:35 SERVER -> CLIENT: 221 cp667.webempresa.eu closing connection

2022-01-14 11:43:35 Connection: closed

SMTP Error: Could not authenticate.

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