i used wpipb plugin and the n put the shortcode [iptopics] to see the latest posts in my wordpress page and  got error 500 my all site was off

i deactivated the plugin for now

i saw someone 2 years ago with same issue he upgrades php to 7.3 to solve that 

now i have php 8.1

ant solution for that please?

 

You would need to contact the author of that 3rd party resource for assistance.  They would be able to tell you if an updated version is available or help you troubleshoot.