Give A Hand plug in error

Hi, I upgraded my php to 8.0 and my site crashed. This is the message I get:

Fatal error: Unparenthesized a ? b : c ? d : e is not supported. Use either (a ? b : c) ? d : e or a ? b : (c ? d : e) in /customers/5/2/a/ on line 23

Unfortunately the parallaxslider mentioned in the message is not a stand alone plugin I can simply unistall.

Can anyone help me out?

The plugin is not supported by PHP8. Downgrade the PHP to 7.4