Sending error

Replies: 0

Hi

I have been using the smtp plugin for some months now and it always worked but now suddenly it stopped working and test email gives me this error:

Versions:
WordPress: 4.9.8
WordPress MS: No
PHP: 7.0.32
WP Mail SMTP: 1.2.5

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

Server:
OpenSSL: Yes
PHP.allow_url_fopen: Yes
PHP.stream_socket_client(): Yes
PHP.fsockopen(): Yes
PHP.curl_version(): Yes
Apache.mod_security: No

Debug:
Error while sending via Gmail mailer: {
“error”: “invalid_grant”,
“error_description”: “Bad Request”
}