My bookings table fixed to the top of the page

Dear service team,

in my environment on the my bookings page, the “my bookings” table with id=”dbem-bookings-table” has the following classes: class=”widefat post fixed”.

This leads the table to be displayed on top of the page overlapping the menu and being displayed inadequately.

Therefore, I inserted a very small script on that page:

<script type="text/javascript">$("#dbem-bookings-table").removeClass("fixed");</script>

This works quite well, however, it seems not normal to be in need thereof.

How could I avoid to have the class “fixed” being attached to “#dbem-bookings-table” in the first place?

Thanks in advance for your support.

Kind regards

Michael