Calendar Issues On One Of Three Sytist Sites...

I am trying to make a date "unavailable" and it every time I click on a day the pop up screen comes up completely blank. I've tried several different computers and several different browsers.

I have three different Sytist sites, and the other two are working just fine.

We were able to make appointments this morning, but not since updating later in the morning. Any clue as to what has happened, or what I may have done wrong?

Edited by

I am having this same issue. Please help! I just had client double book a an unavailable date because I can't mark it as "unavailable".

Edited by

If you upgraded to the new Sytist update 4.1, look at the bottom of any page in the admin for the PHP version (the programming language).

If it says version 5 something for PHP that is the problem (and this is most likely the problem). You will need to have the PHP updated to at least PHP 7. PHP 5 is very old. You may be able to do that in your hosting control panel or simply ask your host to update it.

Edited by

That worked, thanks!

Edited by

Yep, got it! I was waaaaay behind with only version 5! Thank you :)

Edited by