Old osclass 3.7.4 with some old plugins migrated to latest osclass 8.1.1  with latest theme.

old plugins may be 4-5 using - migration success.

But when php 7.2 changed to 7.4 or next version then website shown - OSclass error

so what is issue..?

only 7.2 working other version error showing. How to fix..?

@Ajit
Upgrade Osclass.
That's easiest way.

already upgraded 3.7.4 to 8.1.1 

but php 7.2 above not working. only 7.2

what is cause ...?


Finally Solved.   Php 7.4  works.          cause -  oc-admin folder rename -   old plugins internal all oc-admin url structure dependency error causing

when normal oc-admin name used then php 7.4 work well.

Thanks for feedback