Critical error on wordpress

I was stumped all morning why my wordpress got a critical error every time I tried to edit one of my slideshows or create new.
I saw that I just updated my PHP to 8... it did not like that at all. I put it down to PHP 7.4 and it worked again.

Just in case someone else gets a wordpress error on the slideshow I hope this saves someone some time.

Hi
thank you for the infos, I will check that
CEd

I have fixed the issue with PHP 8 in the 1.4.8 version