I'm having an issue with PHP 8+ stricter syntax requirements. When creating a booking also using Vik Rent Car, all the steps work well until the submit function is clicked - then it returns the screenshot attached.
Vik Rent Car have said it's not on their end and now I'm working back through the other site components.
The other issue where I've hit a wall is the debug console log gets removed at the final step and also doesn't appear to register in the admin error log files so I can't locate the file and line location to attempt to fix this myself.
I've reverted back to PHP 7.4 for the time being. Until I can find a fix available or an update to repair this issue.
Thanks