Hi Yo S,
From our logs we see that there are some additional scripts included in your web page to resize the default web embed scheduler iFrame provided by us. This is the reason for the web embed scheduler to not display properly.
Please contact your web page developer in order to correct this. Once the scripts are handled, web embed scheduler will be displayed properly.
In case of further problem, please email us the direct URL of the scheduler page for our further analysis.
Regards,
Samba
ChARM Support