Web Bug from …

When I send the test email, only with Android (gmail program) and from PC from web gmail this error appears below:
Web Bug from https://”mysite”/?noti=ODswOzIzZGFjM2Y1MTM1YmNjMWYxNzMyNTk1YmQzOTEzODA0

For me it is very important because I send a lot with this method and the error is ugly to see at the footer of the page.
Does any good soul know the solution?

In the code of the email there is this below:

<!– /tnp –>
</td>
</tr>
</table>

<img src=3D”data:image/gif;base64,R0lGODlhAQABAJEAAP///wAAAAAAAAAAACH5BAkAA=
AAALAAAAAABAAEAAAgEAAEEBAA7″ width=3D”1″ height=3D”1″ alt=3D”Web Bug from h=
ttps://”mysite”/?noti=3DODswOzIzZGFjM2Y1MTM1YmNjMWYxNzMyNTk1YmQzOTEzO=
DA0″ /></body>
</html>

–b1=_3yhJTs1LloGLUfzvrmx664YrbN9hdj8ldCql7u8–

I hope someone helps.
Thank you and congratulations for your work!
Matteo