Unable to send or receive gmail email

I have been unable to send or receive emails on gmail since yesterday morning. My other email address works fine. I have not changed any settings, and having checked them they seem to be the same. I have tried on my Windows 10 laptop and my Android tablet. The gmail email program is not sending or receiving either.

The only error message I have had is:
Could not deliver message to the following recipient(s):  
Failed Recipient: [email protected]
Reason: Remote host said: 452 4.2.2 The email account that you tried to reach is over quota. Please direct
4.2.2 the recipient to
4.2.2  https://support.google.com/mail/answer/6558l60si1827441qge.55 - gsmtp
 
 
   – The header and top 20 lines of the message follows –
 
Received: from [127.0.0.1] (94.31.189.80.dyn.plus.net [80.189.31.94]) by mail.webplus.net with SMTP;
   Tue, 22 Sep 2015 17:15:47 +0100
From: “David MacAuslan” <[email protected]>
To: “David MacAuslan” <[email protected]>
Subject: test3
Date: Tue, 22 Sep 2015 16:15:46 +0000
Message-Id:

Reply-To: “David MacAuslan” <[email protected]>

User-Agent: eM_Client/6.0.23181.0

Mime-Version: 1.0

Content-Type: text/plain; charset=utf-8

Content-Transfer-Encoding: quoted-printable


I would be grateful for any help.

Hello David,
sounds like your problem is with gmail and not with eM Client.
I recommend reading the page the error log itself is sending you to - https://support.google.com/mail/answe… and see how much storage you have left for your Google account.

Best regards,
Olivia

Many thanks. That was the problem.