ProCalendar 1.3.14

[legionwebs]

I installed the new ProCalendar 1.3.14 for WB 2.10 and get the following error message when trying to add an event.

There was an uncatched exception
Call to undefined function cal_days_in_month()
in line (45) of (/modules/procalendar/functions.php):

Anyone know of a fix?

[legionwebs]

Pretty sorry software when you can't get a  developer or someone to answer a question in 3 weeks.

[hgs]

Sorry, I've just discovered your post.
Can you give us some more information?

Which php version is running on your server

Is the DB running in strict mode?

I just recently installed it on a php 7.1.6 release and was able to enter an appointment without any problems