Unexpected token on publishing posts from the quick post feature

Hi there,

We cannot post articles from the front end using the quick post feature. We receive a notification "Unexpected token <". We face the issue in all tabs, either we try to publish text, photo, video, quote or links.

site: penaltara.com
username: *****
password: *****

If you need a super user username, password or FTP access, please let us know an email address to provide you with this info.

Regards,

Phivos Constantinou