Long vertical text in calendar widget

Before:
The calander widget work nicely with a black color on all days there was an appointment.
And could hover with the mouse over, to see name and details about the appointment.
Could also go to the next month and see the schedule there.

Now:
All the text of the appointment now shows up in the widget, and gets really long vertically.
For expample if i had an appointment tomorrow: “Meeting with Lucas”
The widget wil display it like this:
“M
ee
t
in
g

w
it
h

L
uk
a
s
”

And then, the calendar gets really long vertically.
Also, I cannot go to the next month, to check the schedule there, even if there is multiple appointments that month to.

The webpage:
https://eikenbedehus.no/